Abd. Wahab, Izudinshah, and Lokman Hakim Ismail. “Natural Ventilation Performance of Kedah Vernacular House”. International Journal of Sustainable Construction Engineering and Technology, vol. 5, no. 2, Oct. 2014, pp. 53-65, https://publisher.uthm.edu.my/ojs/index.php/IJSCET/article/view/1009.