Daud, Z., Nasir, N., Awang, H., Ab Aziz, N. A., Ahmad, B., Ridzuan, M. B., & Tajarudin, H. A. (2018). Chitosan beads as an adsorbent for the removal of colour from natural rubber wastewater. UTHM Publisher.

Daud, Zawawi, Nazlizan Nasir, Halizah Awang, Nur Adila Ab Aziz, Baharin Ahmad, Mohd Baharudin Ridzuan, and Husnul Azan Tajarudin. Chitosan Beads as an Adsorbent for the Removal of Colour from Natural Rubber Wastewater. UTHM Publisher, 2018.

Daud, Zawawi, et al. Chitosan Beads as an Adsorbent for the Removal of Colour from Natural Rubber Wastewater. UTHM Publisher, 2018.