Arwasang, N.; Khamchoorat, P.; Panorah, J.; Phansomboon, S.; Wiriyaampaiwong, P.; Heman, A.; Kraisoda, P.; Tasarod, H.; Rueangsan, K. Product Yield and Characterization of Biochar from Senna Siamea via Slow Pyrolysis Process. KSU-Journal Sci Tech & Innov. 2026, 5, 159-168.