Gaanty Pragas, M., Boey, P. L., Shangeetha, G., Sze-Xooi, L., Sau-Lai, L., & Melati, K. (2011). Utilization of BA (boiler ash) as Catalyst for Transesterification of Palm Olein. Elsevier.

Gaanty Pragas, Maniam, Peng Lim Boey, Ganesan Shangeetha, Lim Sze-Xooi, Lim Sau-Lai, and Khairuddean Melati. Utilization of BA (boiler Ash) As Catalyst for Transesterification of Palm Olein. Elsevier, 2011.

Gaanty Pragas, Maniam, et al. Utilization of BA (boiler Ash) As Catalyst for Transesterification of Palm Olein. Elsevier, 2011.