Yeap, Tok Kheng author.

Chemistry FORM4&5 Yeap Tok Kheng -- Petaling Jaya, Selangor SASBADI SDN. BHD., 2019

x, 254 pages illustrations 21 cm

ISBN:  9789837708358

Includes questions and answers 

1. Chemistry -- Problems, exercises, etc. 

AKA 540.76 YEA