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Nurul Hajar, Embong, Hindryawati Noor, Bhuyar Prakash, Natanamurugaraj Govindan, Ab Rahim Mohd Hasbi, and Maniam Gaanty Pragas. Enhanced Biodiesel Production via Esterification of Palm Fatty Acid Distillate (PFAD) Using Rice Husk Ash (NiSO4)/SiO2 Catalyst. Springer Berlin Heidelberg, 2021.

Nurul Hajar, Embong, et al. Enhanced Biodiesel Production via Esterification of Palm Fatty Acid Distillate (PFAD) Using Rice Husk Ash (NiSO4)/SiO2 Catalyst. Springer Berlin Heidelberg, 2021.