M. R. Sebola, C. T. Maqhiza, B. C. Sempunga, S. S. Makgato, and M. F. Bambo, “A Study of Physicochemical Characteristics of Vetiver Grass (vetiveria Zizanioides) in Bioenergy Production”, Chemical Engineering Transactions, vol. 109, pp. 361-366, Jun. 2024.