Sana Ullah, Hamid Ullah, and Asad Ullah. “DESIGN AND DEVELOPMENT OF SOLAR FOOD DEHYDRATOR USING QUALITY FUNCTION DEPLOYMENT”. Spectrum of Engineering Sciences 3, no. 11 (November 3, 2025): 1139–1148. Accessed November 6, 2026. https://www.thesesjournal.com/index.php/1/article/view/1694.