23 1 40 Rolan Siregar Additional Author Marhiras Sitanggang Additional Author Jadongan Sijabat Additional Author Henry Hutabarat Additional Author David Berthony Manalu Additional Author Hotman Manarung & Rosnawyta Simanjuntak Additional Author Marto Silalahi Additional Author Asina Cristina Rosito Additional Author Albert Tony Manalu Additional Author Kartika Dewi Additional Author Sutan L.M.H Simanjuntak Additional Author Nalom Siagian Additional Author mixed material 08530203 Medan Universitas HKBP Nonmensen 2014 Benika Naibaho Additional Author Maria Rumondang Sihotang Additional Author Efron Manik Additional Author Halomoan Sihombing Additional Author Mariana br Surbakti & Sri Rosepda Sebayang Additional Author Bobby Pramjit Singh Dhillon Additional Author Tumiur Gultom & Endang Sulistyarini Gultom Additional Author Rohmad Budiono Additional Author Magdalena Siregar Additional Author Sarma Paggabean Additional Author mixed material 08530203 Medan Uniersitas HKBP Nommensen 2014 Benjamin Spock Additional Author mixed material Greenwich Fawcett Publication, Inc. 1965 Maus, Joost Primary Author Schieferli, Erick Additional Author mixed material Netherlands Leiden University 1989 Environmental_Problems.jpg.jpg AGUS M Tardan Additional Author mixed material Canad Indonesia 1992 Audit_Lingkungan.jpg.jpg MONTERO,Darrel Additional Author McDOWEL,Judith. Additional Author mixed material New York Macmilan Publishing Company 1986 Social_Problems.jpg Peter Newman Additional Author mixed material 0333495489 Hongkong Macmillan Reference Books 1990 Problems_Of_The_Planned_Economy.jpg AGARWALA, S.N. Primary Author mixed material New Delhi Tata McGraw-Hill Publising Company LTD 1977 India%27s_Population_Problems_2nd.jpg SADIK, Nafis. Additional Author mixed material New York United Nations Population Fund 1991 POPULATION_Policies_and_programmes.jpg R.J. Garde Additional Author mixed material 0852263015 New Delhi Wiley Eastern Limited 1977 Mechanics_Of_Sediment_Transportation_And_Alluvial_Stream_Problems.jpg LANCTOT, Claude A. Additional Author MARTIN, Mary Catherine Additional Author SHIVANANDAN, Mary Additional Author mixed material Washington IFFLP/FIDAF 1984 NATURAL_Family_planning_Development_of_national_program.jpg Methods And Problems Maurice Sasieni Additional Author Arthur Yaspan Additional Author Lawrence Friedman Additional Author mixed material New York John Willey and Sons 1959 Operations_Research_Methods_And_Problems.jpg SULLIVAN, Thomas J. Additional Author THOMPSON, Kenrick S. Additional Author WRIGHT, Richard D. Additional Author GROSS, George R. Additional Author SPADY, Dale R. Additional Author mixed material 0471029327 New York John Wileyand Sons 1980 Social_Problems_Divergent_Perspectives.jpg SINGH,Rahul Additional Author mixed material New Delhi UBS Publisher\'s Distributors 1994 Family_Planning_Success_Stories.jpg Seymour Lipschutz Additional Author More Lars Lipson Additional Author mixed material 0070380317 New York Mc Graw-Hill Book Company 1992 2000_Solved_Problems_In_Discrete_Mathematics.jpg Crispian Scully Additional Author Roderick A. Cawson Additional Author mixed material 0723609993 London Butterworth-Heinemann 1993 Medical_Problems_In_Dentistry.jpg melalui 10 segi pkk / 362.4 R. SOEWARNO Additional Author mixed material Jakarta Erlangga 1985 MembinaKeluarga_Sejahtera_Melalui_10_Segi_PKK.jpg Haddix, Kathryu A. Primary Author Whaley, James E. Primary Author Drug Primary Author Pharmaceutcal Arithmetic Problems exercises Primary Author mixed material 0028021894 Hoboken, NJ Sams 2002 PLANIMETRI_KP_0008.jpg Boyce, William E. Primary Author mixed material 9780470398739 Asia John Wiley 2010 LIPSCHUTZ,Seymour Additional Author mixed material New York Mc-Graw Hill Book Company 1964 CHEESMAN, Evelyn Primary Author mixed material London G.Bell And Son 1953 Aframework For Decisioon Making Daniel D.Chiras Additional Author mixed material Copyright The Benjamin/cumings publishing company,inc 1985 Steven H. Star Additional Author Nancy J. Davis Additional Author Christopher H. Lovelock and Benson P. Shapiro Additional Author mixed material 0070608350 Tokyo Mc Graw-Hill Book Company 1977