English book series for elementary school students Rainbow 1 CHRISTINA KRISTIYANI Lucia Rina Tri K. Flora Maharani Erni Setyowati, C. Heru Aji Jaladara Hernawan text Yogyakarta Kanisius 2017 Bibliografi : hlm. 107 Bahasa Inggris URN:ISBN:978-979-21-3668-5