2020. Pengembangan Perangkat Pembelajaran Model PQ4R Media Concept Mapping Terhadap Hasil Belajar Biologi : The Development of Teaching Administrations by Using PQ4R Learning Model Concept Mapping to Learning Outcomes of Biology. BIODIK. 6, 1 (Mar. 2020), 76-93. DOI:https://doi.org/10.22437/bio.v6i1.8466.