Gaya APA

Siregar, N, F., Siregar, I, F. (2021). Hots Mathematics dalam problem based learning (1). Medan: Pusdikra Mitra Jaya.

Gaya MLA

Siregar, Nur, Fauziah., Siregar, Insan, Fahmi. "Hots Mathematics dalam problem based learning". 1 Medan: Pusdikra Mitra Jaya, 2021. Text.