APA (7th ed.) Citation

Yap, Lok, & Tan. (1999). Sains tingkatan 1.2.3. Pustaka Delta Pelajaran.

Chicago Style (17th ed.) Citation

Yap, Lok, and Tan. Sains Tingkatan 1.2.3. Petaling Jaya: Pustaka Delta Pelajaran, 1999.

MLA (8th ed.) Citation

Yap, et al. Sains Tingkatan 1.2.3. Pustaka Delta Pelajaran, 1999.

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