Sianipar, A. M. (2019). Peranan Koperasi Gapoktan Terhadap Upaya Pemberdayaan Ekonomi Masyarakat di Desa Huta Nauli. Journal of Management Science (JMAS), 2(3, Juli), 61–67. Retrieved from https://exsys.iocspublisher.org/index.php/JMAS/article/view/33