40 1 10 Cho, Young-Seon Primary Author Endang Nawang Novianti Translator mixed material 9789792796841 Jakarta Elex Media Komputindo 2011 cover_electricity_and_electron_listrik_dan_elektron_why_.jpg Endah Nawang Novianti Translator Jeon, Jae-Woon Primary Author mixed material 9786020005331 Jakarta Elex Media Komputindo 2011 cover_experiment_and_observation_percobaan_dan_pengamatan_why_.jpg Youngsun Jo Primary Author Endah Nawang Novianti Translator mixed material 9786020270845 Jakarta Elex Media Komputindo 2015 cover_chinese_character_karakter_cina_why_.jpg Lee, Kwang-Woong Primary Author Sutoyo Soh Daeyong Translator mixed material 9789792749335 Jakarta Elex Media Komputindo 2009 cover_animals_binatang_why_.jpg Wang, Yeon Joong Primary Author Iwan Wildana Translator mixed material 9789792757996 Jakarta Elex Media Komputindo 2009 cover_invention_and_discovery_penciptaan_dan_penemuan_why_.jpg Mukherjee, Indira Primary Author mixed material 8175820020 New Delhi Bluebird Books 1997 cover_tell_me_the_answer_book_3.jpg The world as you've never seen it before Farndon, John Primary Author mixed material 9781782096382 UK Miles Kelly Publishing 2014 cover_body_science_the_world_as_you_ve_never_seen_it_before.jpg The world as you've never seen it before Twist, Clint Primary Author mixed material 9781782096450 UK Miles Kelly Publishing 2014 50 questions and all the answers Frost, Del Illustrator mixed material 9780753431054 London Kingfisher 2010 cover_the_book_of_who_50_questions_and_all_the_answers.jpg Lebih dari 40 Kegiatan Menentang Grativitas, Mengorbit Bumi, Menjelajahi Ruang Angkasa, untuk Anak-anak Wiese, Jim Primary Author Yuanin Angraeni Translator mixed material 0741158526 Bandung Pakar Raya 2005 cover_sains_kosmis_lebih_dari_40_kegiatan_menentang_grativitas_mengorbit_bumi_menjelajahi_ruang_angk