Items where Person is W , Widayat,

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H , Hadiyanto, and W , Widayat, and Andri , Cahyo Kumoro (2012) Potency of Microalgae as Biodiesel Source in Indonesia. International Journal of Renewable Energy Development, 1 (1). pp. 23-27. ISSN 2252-4940

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W, Widayat, and A, Abdullah, and Kanevi , Octova Paradita and Elsanta , Monaliza Tungga D (2012) Optimization Process of Biodiesel Production From Nyamplung Seed (Calophyllum inophyllum L) Using In Situ Process and Ultrasonic Assisted. In: International Conference on Chemical and Material Engineering 2012. ISBN : 978-602-097-281-7, Grand Candi Hotel, Semarang Indonesia.

W, Widayat, and S, Suherman (2012) Biodiesel Production from Rubber Seed Oil via Esterification Process. International Journal of Renewable Energy Development, 1 (2). pp. 57-60. ISSN 2252-4940

W , Widayat, and Berkah , Fajar and Tamtomo , Kiono (2012) Ultrasound Assisted Esterification of Rubber Seed Oil for Biodiesel Production. International Journal of Renewable Energy Development, 1 (1). pp. 1-5. ISSN 2252-4940