Indrayani, K. and Pratama, A. 2023. Identification of Benefits of Participating in Content Mastery Services at SMPN 37 Muaro Jambi. Indonesian Journal of Education Research (IJoER). 4, 2 (Apr. 2023), 23-27. DOI:https://doi.org/10.37251/ijoer.v4i2.577.