APA (7th ed.) Citation

Iskandar Ab Rashid & Zaitun Ismail. CALC Langkah demi langkah. Venton Publishing.

Chicago Style (17th ed.) Citation

Iskandar Ab Rashid and Zaitun Ismail. CALC Langkah Demi Langkah. Kuala Lumpur: Venton Publishing.

MLA (8th ed.) Citation

Iskandar Ab Rashid and Zaitun Ismail. CALC Langkah Demi Langkah. Venton Publishing.

Warning: These citations may not always be 100% accurate.