“Upaya Meningkatkan Aktivitas Dan Prestasi Belajar Siswa Pada Bidang Studi Biologi Melalui Penerapan Metode Pembelajaran Kooperatif Tipe STAD: Efforts to Increase Student Learning Activities and Achievements in the Field of Biological Studies through the Implementation of the STAD Type Cooperative Learning Method”. BIODIK, vol. 5, no. 2, Sept. 2019, pp. 121-30, doi:10.22437/bio.v5i2.7589.