4 1 10 Besi 20 kg muhamad Ilyasa Editor Gol A Gong Primary Author Tias Tatanka Primary Author Sugeng Supriadi Illustrator mixed material 9789790632448 Jakarta Bestari Kids 2011 Sasongko Yosep Kuncoro Editor Miftah Farid Primary Author mixed material 9789790272088 Bandung Titian Ilmu 2016 Tim Penyunting Angkasa Editor Edi Warsidi Primary Author mixed material 9789796656806 Bandung Angkasa 2015 H. Restiani Primary Author Tim Penyunting Angkasa Editor mixed material 9789796656813 Bandung Angasa 2015