Gaya APA

et.al, K, S, H. (2021). My Pals Are Here! Science International Edition Textbook 5A (Jil. 1). Singapore: Marshall Cavendish Education.

Gaya MLA

et.al, Kwa, Siew, Hwa,. "My Pals Are Here! Science International Edition Textbook 5A". Jil. 1 Singapore: Marshall Cavendish Education, 2021. Text.