Tiew, W. S. “CHARACTERISTICS OF SELF-CITATIONS IN JOURNAL OF NATURAL RUBBER RESEARCH 1988- 1997: A TEN-YEAR BIBLIOMETRIC STUDY”. Malaysian Journal of Library and Information Science, vol. 5, no. 1, July 2000, pp. 95-104, https://jice.um.edu.my/index.php/MJLIS/article/view/6824.