7 1 40 Memenangkan Percobaan-Percobaan Ilmiah untuk Lomba dan Pameran Sains dan Mendapatkan Nilai Tambah VanCleave, Janice Primary Author mixed material 0471177709 Bandung Pakar Raya 2004 1876.jpg.jpg W.S.Mackenzie Additional Author mixed material 0582300827 New York John Willey and Sons 1982 Atlas_of_Igneous.jpg.jpg Carl S Pike Additional Author mixed material 0878936602 Stamford Sinauer Associates,Inc 1973 Study_Guide_For_Life_On_Earth.jpg An Introduction To Physical Geology Brian J.Skinner Additional Author Stephen C.Porter Additional Author mixed material 0471531316 New York John Willey and Sons 1992 The_Dynamic_Earth_An_Introduction_To_Physical_Geology_2nd.jpg Arthur R.Benton Additional Author mixed material 0070048843 New York Mc Graw-Hill Book Company 1991 Element_Of_Plane_Surveying.jpg Arthur Getis Additional Author Judith Getis Additional Author Jerome D. Fellmann Additional Author mixed material 069738506X New York Mc Graw-Hill Book Company 2000 IMG_0105.jpg N.Kolobkov Additional Author mixed material Moscow Foreign languages Publishing 1963