S. Bethari

The Influence of Sorbitan Monooleate as a Surfactant and Octanol as a Co-surfactant to Restore Biodiesel’s Flow Properties at the Cold Temperatures

M. Nasikin, B. Susanto, A. P. Azaria, 2020, International Journal of Renewable Energy Research.

The use of non-ionic surfactants with different Hydrophilic-Lipophilic Balance (HLB) and their effect on flow properties in palm oil biodiesel

A. P. Azaria, S. Bethari, M. Nasikin, 2021 .

Monoglyceride contents in biodiesel from various plants oil and the effect to low temperature properties

R. Anggarani, C. Wibowo, S. Bethari, 2018 .

Determination of Oxidation Stability of Palm-Oil Biodiesel and Biodiesel-Diesel Blends by Rancimat and RSSOT Methods

Maymuchar, R. Anggarani, C. Wibowo, 2022, IOP Conference Series: Earth and Environmental Science.

Fuel Properties of Two Types High-Speed Diesel Blending with Palm Oil Biodiesel in Indonesia

Maymuchar, R. Anggarani, C. Wibowo, 2021 .

The Effect Characteristics Cetane Number of Commercial High-Speed Diesel Fuel-Biodiesel Palm Oil-Based Blends on CFR engine

Maymuchar, R. Anggarani, C. Wibowo, 2022, IOP Conference Series: Earth and Environmental Science.

Water content in biodiesel for diesel fuel blends: measurement using centrifuge and coulometric titration method

R. Anggarani, C. Wibowo, S. Bethari, 2019, IOP Conference Series: Materials Science and Engineering.