APA (7th ed.) Citation

Aris, A. Z., Abdul Manaf, L., Ramli, M. F., Yusoff, M. K., & Md Yusoff, F. Existing environment. Universiti Putra Malaysia Press.

Chicago Style (17th ed.) Citation

Aris, Ahmad Zaharin, Latifah Abdul Manaf, Mohammad Firuz Ramli, Mohd. Kamil Yusoff, and Fatimah Md Yusoff. Existing Environment. Universiti Putra Malaysia Press.

MLA (9th ed.) Citation

Aris, Ahmad Zaharin, et al. Existing Environment. Universiti Putra Malaysia Press.