Why? : kotoran / written by Heo Soon Bong ; cartoon by Song Hoe Seok ; alih bahasa, Deni Supriadi Why? : Traditional science = sains tradisional / written by Heo Soon-Bong ; cartooned by Song Hoe-Seok ; alih bahasa, Endah Nawang Novianti Why ?: penyakit / Heo Soon-Bong ; alih bahasa, Deni Supriyadi Why? : life science = ilmu pengetahuan alam / written by Heo Soon Bong ; cartoon by Park Jong Kwan ; alih bahasa, Irene Christine ; editing, Citra Why? : Poisonous animals & plants = hewan dan tanaman beracun / Soon-Eun Jeong ; cartoon by Hoe-Seok Song ; alih bahasa, Suhud Amarullah. Why? : fossil = fosil / written by Lee Kwang-Woong ; cartoon by Song, Hoe-Seok ; alih bahasa, Khoirul Huda ; editor, Citra, IreneWhy? : pertolongan pertama pada kecelakaan / written by Papyrus ; cartooned by Song Hoe-Seok ; alih bahasa, Endah Nawang NoviantiWhy? : happy science 5 / written, Heo Soon Bong ; illustrated by Kim Kang-HoWhy ? Air / written by, Nam-Seok Kim; alih bahasa, Deni SupriadiWhy? : dinosaur = dinosaurus / written by Lee Hang-Seon ; cartoon by Song Hoei-Seok ; alih bahasa, Bambang Sudiyono