@unpublished{repository9705, publisher = {Universitas Muhammadiyah Prof. DR. HAMKA}, month = {August}, year = {2021}, title = {Seminar Bulanan ASPBJI April}, note = {Unpublished}, url = {http://repository.uhamka.ac.id/id/eprint/9705/}, author = {Utari, Retno} }