GEOKIMIA ORGANIK FRAKSI AROMATIK LIGHT OIL PRODUK PENCAIRAN BATUBARA AREA (PIT) BINTANG SANGATTA KALIMANTAN TIMUR

by Lukman Sugiharto Wijaya, R.Y. Perry Burhan
Published 2016-08-01

KEMATANGAN MOLEKULER FRAKSI HIDROKARBON AROMATIK CORE BADAK 1/208 MUARA BADAK, KUTAI KARTANEGARA, KALIMANTAN TIMUR: SUATU TINJAUAN KUALITATIF

by r arizal firmansyah, R.Y. Perry Burhan
Published 2016-03-01

Synthesis and Characterization of Diesel Lubricity Enhancer through Transesterification Reaction of Palm Oil with 1,2-Ethanediol

by Yulfi Zetra, Sovia Masfuri Walidatus Sholihah, R. Y. Perry Burhan, R. Arizal Firmansyah
Published 2021-05-01

Synthesis of Bio-additive for Low Sulphur Diesel: Transesterification of Soybean Oil and Ethylene Glycol using K2CO3 Catalyst

by Rhiby Ainur Basit Hariyanto, R. Arizal Firmansyah, R. Y. Perry Burhan, Yulfi Zetra
Published 2021-03-01

The Oxygenated Biomarker as an Indicator of Origin and Maturity of Miocene Brown Coal, Sangatta Coal Mines, East Kalimantan

by Yulfi Zetra, Hendra Siswanto Kusuma, Fina Riandra, Imam B. Sosrowidjojo, R.Y. Perry Burhan
Published 2018-04-01