Why? : life science = ilmu pengetahuan alam / written by Heo Soon Bong ; cartoon by Park Jong Kwan ; alih bahasa, Irene Christine ; editing, Citra Why ? environment / Heo, Soon-Bong ; alih bahasa, Irene Christin ; ilustrasi oleh Park, Jong-Kwan Why? : Nuclear & energy = Nuklir dan Energi / written by Lee Kwang Woong ; cartoon by Park Jong Kwan ; alih bahasa, Bambang Sudiyono. Why? : Traditional science = sains tradisional / written by Heo Soon-Bong ; cartooned by Song Hoe-Seok ; alih bahasa, Endah Nawang Novianti Why? : kotoran / written by Heo Soon Bong ; cartoon by Song Hoe Seok ; alih bahasa, Deni Supriadi Why? : computer = komputer / written by Park, Soon-Baek ; cartoon by Park, Jeong-Hun ; alih bahasa, Dede Sofyant Setiawan ; editor, WhindyWhy? : happy science 5 / written, Heo Soon Bong ; illustrated by Kim Kang-HoWhy ? Mikroorganisme / Heo Soon-Bong ; alih bahasa, Iwan WildanaWhy ?: penyakit / Heo Soon-Bong ; alih bahasa, Deni SupriyadiWhy ? binatang / Lee, Kwang-Woong ; alih bahasa, Sutoyo Soh Daeyong ; cartooned by Park Jong Kwan ; editor, Florentina Noveni