Exceptional papers will be recommended for publication on a main issue of Sains Malaysiana journal (ISSN: 0126-6039).Sains Malaysiana is a refereed journal committed to the advancement of scholarly knowledge and research findings of the several branches of science and technology. It contains articles on Earth Sciences, Health Sciences, Life Sciences, Mathematical Sciences and Physical Sciences. The journal publishes articles, reviews, and research notes whose content and approach are of interest to a wide range of scholars. Sains Malaysiana is published by the UKM Press an its autonomous Editorial Board are drawn from the Faculty of Science and Technology, Universiti Kebangsaan Malaysia. In addition, distinguished scholars from local and foreign universities are appointed to serve as advisory board members and referees.Journal Homepage: https://www.ukm.my/jsm/SCOPUS Database: https://www.scopus.com/sourceid/7700153224 Web of Science Database: https://mjl.clarivate.com:/search-results?issn=0126-6039&hide_exact_match_fl=true&utm_source=mjl&utm_medium=share-by-link&utm_campaign=search-results-share-this-journal Note: The authors of the recommended papers will pay the Article Processing Charge of the Journal if requrired by the publisher.