Zainon, Nurshuhada, Faizul Azli Mohd-Rahim, Syazwani Sulaiman, Saipol Bari Abd-Karim, & Atikah Hamzah. " Factors Affecting the Demand of Affordable Housing among the Middle-Income Groups in Klang Valley Malaysia." Journal of Design and Built Environment [Online], (2017): 1-10. Web. 13 Dec. 2019