OPTIMALISASI KEUNTUNGAN USAHA TAHU TEMPE DI KOTA MEDAN MENGGUNAKAN METODE GRAFIK PROGRAM LINIER DENGAN SOFTWARE AUTOGRAPH (STUDI KASUS UMKM PAK SAFWAN). JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 9, n. 3, p. 3354–3361, 2026. DOI: 10.54314/jssr.v9i3.6275. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/6275.. Acesso em: 28 aug. 2026.