Ozdemir, Yavuz, Pelin Alcan, Huseyin Basligil, and Dursun Cakrak. 2018. “A Hybrid QFD-AHP Methodology and an Application for Heating Systems in Turkey”. An International Journal of Optimization and Control: Theories & Applications (IJOCTA) 8 (1):117-26. https://doi.org/10.11121/ijocta.01.2018.00420.