“PERANCANGAN DAN PEMBANGUNAN SISTEM E-LEARNING PERPUSTAKAAN PERTANIAN”. Jurnal Perpustakaan Pertanian 25, no. 2 (September 13, 2017): 71–77. Accessed April 18, 2025. https://epublikasi.pertanian.go.id/berkala/index.php/jpp/article/view/203.