ANALISIS PENGARUH KUALITAS PELAYANAN TERHADAP LOYALITAS PELANGGAN PADA KEDAI KOPI LOJJJIK JATINANGOR. IPSSJ [Internet]. 2025 Jul. 20 [cited 2026 Oct. 21];2(03 Juli):5356-6. Available from: https://ipssj.com/index.php/ojs/article/view/693