Gaya APA

YONG, L, W. (2007). PHYSICS INSIGHTS O LEVEL 2ND EDITION THEORY WORKBOOK . SINGAPORE: PEARSON EDUCATION SOUTH ASIA.

Gaya MLA

YONG, LOO, WAN. "PHYSICS INSIGHTS O LEVEL 2ND EDITION THEORY WORKBOOK". SINGAPORE: PEARSON EDUCATION SOUTH ASIA, 2007. Text.