1. LGM (2019) Natural rubber statistics. Malaysian Rubber Board. https://www.lgm.gov.my/webv2/pdfViewer/nrStatistic. Accessed 17 Mar 2021
2. DOSM (2019) Monthly rubber statistics Malaysia. Department of Statistics Malaysia Official Portal. https://www.dosm.gov.my/v1/index.php?r=column/cthemeByCat&cat=73&bul_id=aTR5UnlJS2R0Mnhtckhidkw4OGVIUT09&menu_id=Z0VTZGU1UHBUT1VJMFlpaXRRR0xpdz09. Accessed 17 Mar 2021
3. Marattukalam JG, Saraswathyamma CK (1992) Propagation and planting. Dev Crop Sci 23:164–199. https://doi.org/10.1016/B978-0-444-88329-2.50014-3
4. Ahmad B, Ibrahim N, Othman R (2006) The merits of using advanced planting materials in rubber forest plantation. J Rubber Res 9(3):178–192
5. Verheye W (2010) Growth and production of rubber. In: Verheye WH (ed) Land use, land cover and soil sciences. UNESCO-EOLSS Publishers, Oxford