OUAYPORNJAROENCHAI, G. The Profitability of Relationship Marketing. University of the Thai Chamber of Commerce Journal Humanities and Social Sciences, [S. l.], v. 34, n. 4, p. 121–133, 2014. Disponível em: https://so06.tci-thaijo.org/index.php/utccjournalhs/article/view/190762. Acesso em: 30 aug. 2026.