Fu’ad, S. N., N. Khoir, D. J. N. . F, S. Setiawan, and A. . Rohmawati. “Upaya Meningkatkan Minat Belajar Siswa Melalui Metode Reward and Punishment Di MTs”. Journal Focus Action of Research Mathematic (Factor M), vol. 1, no. 2, June 2019, pp. 160-78, doi:10.30762/factor_m.v1i2.1617.