2021. Competency Improvement of Protocol Technical Long Distance Training Participants Through the Learning Management System (LMS) Surabaya Religious Education and Training Center in 2020. Dialektika : Jurnal Ekonomi dan Ilmu Sosial. 6, 1 (Feb. 2021), 1–8. DOI:https://doi.org/10.36636/dialektika.v6i1.490.