Hilmi, Raed. "Cengage ". OER Commons. Institute for the Study of Knowledge Management in Education, 08 Nov. 2018. Web. 25 Aug. 2024. <https://oercommons.org/authoring/49018-cengage>.
Hilmi, R. (2018, November 08). Cengage . OER Commons. Retrieved August 25, 2024, from https://oercommons.org/authoring/49018-cengage.