HERMANTO and ANGEL PURWANTI (2020) “PENGARUH KOMUNIKASI INTERPERSONAL TERHADAP TINGKAT LOYALITAS PELANGGAN”, JURNAL EKONOMI, SOSIAL & HUMANIORA, 1(12), pp. 49–59. Available at: https://jurnalintelektiva.com/index.php/jurnal/article/view/196 (Accessed: 24 June 2026).