Thawonngamyingsakul, Chakkraphan, Anurat Tevata, Aphirak Khadwilard, Jedsada Visedmanee, and Phairoach Chunkaew. “Studying Control Parameters Effects on Performance of Drying Cocoa Bean with Heat Pump Dryer”. Rajamangala University of Technology Tawan-ok Research Journal 18, no. 1 (June 30, 2025): 99–113. accessed September 14, 2026. https://li01.tci-thaijo.org/index.php/researchjournal2rmutto/article/view/264551.