APA (7th ed.) Citation

Chooi, L. P., Azman, E. A., & Ismail, R. (2022). Do it yourself: Humic acid. Universiti Putra Malaysia Press.

Chicago Style (17th ed.) Citation

Chooi, Lin Phooi, Elisa Azura Azman, and Roslan Ismail. Do It Yourself: Humic Acid. Universiti Putra Malaysia Press, 2022.

MLA (9th ed.) Citation

Chooi, Lin Phooi, et al. Do It Yourself: Humic Acid. Universiti Putra Malaysia Press, 2022.