FEONGKEAW , C. PROVIDING CUSTOMER SERVICE IN INDUSTRY. วารสารสุทธิปริทัศน์, Bangkok, Thailand, v. 12, n. 37, p. 85–94, 2020. Disponível em: https://so05.tci-thaijo.org/index.php/DPUSuthiparithatJournal/article/view/246223. Acesso em: 3 ต.ค. 2026.