Qomar, Moh. Nurul, and Anissatus Salamah. 2021. “Analysis of Mahada Cooperative System in Relation to Hatta Cooperative and Shariah Cooperative Concept: Analisis Sistem Koperasi Mahada Dan Relevansinya Dengan Konsep Koperasi Hatta Dan Koperasi Syariah”. El-Qist: Journal of Islamic Economics and Business (JIEB) 11 (2). Surabaya, Indonesia:182-96. https://doi.org/10.15642/elqist.2021.11.2.182-196.