Shamsu Mohamad (2005) “Eco-Hydrilla Ash Glaze, Santubong Series, Rimba Series”, Wacana Seni Journal of Arts Discourse, 4, p. 82. Available at: http://ejournal.usm.my/wacanaseni/article/view/ws-vol4-2005-5 (Accessed: 5 July 2025).