Susanti, Try, Rizki Khairati, and Badariah Badariah. 2019. “Pengaruh Strategi Pembelajaran PQ4R (Preview, Question, Read, Reflect, Recite, Review) Terhadap Hasil Belajar Ilmu Pengetahuan Alam Terpadu Siswa Madrasah Tsanawiyah : The Influence of PQ4R Learning Strategies (Preview, Question, Read, Reflect, Recite, Review) on Integrated Natural Sciences Learning Outcomes Madrasah Tsanawiyah Students”. BIODIK 5 (2):139-49. https://doi.org/10.22437/bio.v5i2.7076.