Zainol, Zuraidah, Norjaya Mohd Yasin, Nik M. Hazrul Nik Hashim, and Nor Asiah Omar. “RELATIONSHIP INVESTMENT IN RELATIONSHIP MARKETING RESEARCH: A BIBLIOGRAPHIC REVIEW”. Journal of Contemporary Issues and Thought 4 (March 6, 2019): 20–45. Accessed December 22, 2024. https://ejournal.upsi.edu.my/index.php/JCIT/article/view/1004.