Okekunle, P. O., S. Maduekwe, G. S. Ajadi, and S. A. Olugbemisoye. “Effect of Temperature and Residence Time on Torrefaction Characteristics of African Birch (Anogeissus Leiocarpa)”. COVENANT JOURNAL OF ENGINEERING TECHNOLOGY, vol. 4, no. 2, Dec. 2020, https://journals.covenantuniversity.edu.ng/index.php/cjet/article/view/2406.