IRFANNI HUTASOIT; SARI WULANDARI. Effect Of Quality of Service on Loyalty Customers at PT. Pos (Persero) Lubuk Pakam Branch. Journal Of Management Analytical and Solution (JoMAS), [S. l.], v. 2, n. 2, p. 52–61, 2022. DOI: 10.32734/jomas.v2i2.8572. Disponível em: https://talenta.usu.ac.id/jomas/article/view/8572. Acesso em: 1 may. 2026.