Wahyuni, Ajeng, Mohammad Bahri, and Tumini Tumini. “Pengaruh Strategi Pemasaran Dan Kualitas Layanan Terhadap Loyalitas Pelanggan Pada PT. Pos Indonesia (Persero) Kantor Pos Probolinggo”. JUMAD : Journal Management, Accounting, & Digital Business 1, no. 3 (June 28, 2023): 371-380. Accessed July 3, 2024. https://ejournal.upm.ac.id/index.php/jumad/article/view/1396.