Gaya APA
Yuan, L. (2011).
My Pals Are Here! Science International Edition Textbook 2A (Jil. 1).
Singapore:
Marshall Cavendish Education.
Gaya MLA
Yuan, Ling.
"My Pals Are Here! Science International Edition Textbook 2A".
Jil. 1
Singapore:
Marshall Cavendish Education,
2011.
Text.