APA (7th ed.) Citation

Park, S. W., Kim, J. Y., & Park, S. H. (2017). Why? MATEMATIK. Orbit Buku Sdn. Bhd.

Chicago Style (17th ed.) Citation

Park, Sang Wook, Ji Yeon Kim, and Sung Hwan Park. Why? MATEMATIK. Petaling Jaya, Selangor: Orbit Buku Sdn. Bhd, 2017.

MLA (9th ed.) Citation

Park, Sang Wook, et al. Why? MATEMATIK. Orbit Buku Sdn. Bhd, 2017.