W. S., T., and S. B.K. “ACKNOWLEDGEMENT PATTERNS IN RESEARCH ARTICLES: A BIBLIOMETRIC STUDY BASED ON JOURNAL OF NATURAL RUBBER RESEARCH 1986-1997*”. Malaysian Journal of Library and Information Science, vol. 7, no. 1, July 2002, pp. 1-14, https://vmis.um.edu.my/index.php/MJLIS/article/view/6783.