Gaya APA
Bukhori, ., Retnawati, H. (2018).
Perangkat pembelajaran matematika problem based learning .
Yogyakarta:
Parama Publishing.
Gaya MLA
Bukhori, ., Retnawati, Heri.
"Perangkat pembelajaran matematika problem based learning".
Yogyakarta:
Parama Publishing,
2018.
Text.