Effect of blending ratio to the liquid product on co-pyrolysis of low rank coal and oil palm empty fruit bunchSiti Zullaikah, Ari Suryo Lenggono, Dennis Farina Nury and M. RachimoellahMATEC Web Conf., 156 (2018) 03023DOI: https://doi.org/10.1051/matecconf/201815603023