Gaya APA

Reigeluth, C, M., An, Y. (2020). Merging the instructional design process with learner-centered theory : the holistic 4D model . London: Routledge.

Gaya MLA

Reigeluth, Charles, M., An, Yunjo. "Merging the instructional design process with learner-centered theory : the holistic 4D model". London: Routledge, 2020. Buku.