Nirwana, Nihlatul Qudus Sukma, Puspita Handayani, and Yanik Purwanti. “Modul Edukasi Keuangan Koperasi”. Umsida Press (September 30, 2021): 1-75. Accessed February 8, 2023. https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-6081-29-7.