Biodiesel deposit characterization on hot chamber test rig with biodiesel fuels (B20) and bioaditif essential oil (atsiri)Muchammad Taufiq Suryantoro, Bambang Sugiarto, Hari Setiapraja, Siti Yubaidah, Ary Budi Mulyono, Mochammad Ilham Attharik, Muhamad Raihan Ariestiawan and Andro CohenE3S Web Conf., 67 (2018) 02016DOI: https://doi.org/10.1051/e3sconf/20186702016