Abdullah, Anis Nabila, et al. “Amalan Pengiraan Pendapatan Kasar Bagi Projek Perumahan Kos Sederhana Rendah”. Research in Management of Technology and Business, vol. 3, no. 1, June 2022, pp. 551-62, https://publisher.uthm.edu.my/periodicals/index.php/rmtb/article/view/7209.