P. A. Oghenekowho, E. Emagbetere, B. Ufuoma Oreko, and J. Oyetola Oyekale, “Development of a Mini Single-Tube Biomass Boiler”, ASRJETS-Journal, vol. 54, no. 1, pp. 1–12, Mar. 2019, Accessed: Sep. 14, 2025. [Online]. Available: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/4739