Chin, Kar Keong, et al. “A Survey on E-Hailing and Demand Responsive Transit (DRT) Services As First Last Mile Mode in Putrajaya”. Recent Trends in Civil Engineering and Built Environment, vol. 6, no. 1, May 2025, https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/18187.