APA (7th ed.) Citation

Samihah Khalil@Halim, Rusniah Ahmad, & Siti Alida John Abdullah. (2018). Tumbuhan ketum di Malaysia: Cabaran dan prospek. Universiti Utara Malaysia.

Chicago Style (17th ed.) Citation

Samihah Khalil@Halim, Rusniah Ahmad, and Siti Alida John Abdullah. Tumbuhan Ketum Di Malaysia: Cabaran Dan Prospek. Kedah: Universiti Utara Malaysia, 2018.

MLA (9th ed.) Citation

Samihah Khalil@Halim, et al. Tumbuhan Ketum Di Malaysia: Cabaran Dan Prospek. Universiti Utara Malaysia, 2018.