Lando, Rolan Adhytia, Marison Sitorus, Rizky Maulana, and Yulius Jatmiko N. “The Influence of Servqual on Customer Satisfaction and Customer Loyalty in After Sales Service at PT XYZ Kalimalang Branch”. PESHUM : Jurnal Pendidikan, Sosial dan Humaniora 4, no. 1 (December 15, 2024): 789–798. Accessed August 8, 2026. https://al-haramjournal.co.id/PESHUM/article/view/6584.