Customer Service Officers’ Ethic at PT. Avia Jaya Indah (Business Partner) PT. CPI In Pekanbaru. Niaga & Negara [Internet]. 2019 Nov. 8 [cited 2026 Apr. 10];12(2):54-68. Available from: https://journal.unilak.ac.id/index.php/nia/article/view/3269