Gaya APA

Siswanti, A, B., Indrajit, R, E. (2023). Problem Based Learning (Ed. 1, cet. 1). Yogyakarta : Andi.

Gaya MLA

Siswanti, Arnita, Budi., Indrajit, Richardus, Eko. "Problem Based Learning". Ed. 1, cet. 1 Yogyakarta : Andi, 2023. Buku.