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Hindryawati, Noor and Widodo, Nanang Tri and Arief, Moh. Syaiful and Hiyahara, Irfan Ashari and Gaanty Pragas, Maniam (2020) Biodiesel production using palm fatty acid distillate and rice husk silica supported NiSO4 as catalyst. In: AIP Conference Proceedings: The 14th Joint Conference On Chemistry 2019 , 10-11 September 2019 , Surakarta, Indonesia. pp. 1-8., 2237 (020020). ISBN 978-0-7354-1996-4 (Published)
Hindryawati, Noor and Daniel, and Erwin, and Gaanty Pragas, Maniam (2017) Preparation of spent bleaching earth-supported calcium from limestone as catalyst in transesterification of waste frying oil. Jurnal Bahan Alam Terbarukan, 6 (1). pp. 68-75. ISSN 2303-0623. (Published)