Zainol, Z., Mohd Yasin, N., Hazrul Nik Hashim, N. M., & Omar, N. A. (2019). RELATIONSHIP INVESTMENT IN RELATIONSHIP MARKETING RESEARCH: A BIBLIOGRAPHIC REVIEW. Journal of Contemporary Issues and Thought, 4, 20–45. Retrieved from https://ojs.upsi.edu.my/index.php/JCIT/article/view/1004