http://repository.uhamka.ac.id/id/eprint/15331/
Pengaruh Model Pembelajaran ROPES (Review, Overview, Presentation, Exercise, Summary)
Pujiati, Agnes Avriani
http://repository.uhamka.ac.id/id/eprint/15331/1/FKIP_PENDIDIKAN%20BIOLOGI_1501125002_AGNES%20AVRIANI%20PUJIATI.pdf