Fitriani, Fitriani, et al. “Studi Komparasi Pengaruh Antara Model Pembelajaran Problem Based Learning (PBL) Dan Self Regulated Learning (SRL) Terhadap Hasil Belajar Kimia”. Chemistry Education Practice, vol. 2, no. 1, May 2019, pp. 6-11, doi:10.29303/cep.v2i1.1130.