Abdul Jalil, Norasibah, et al. “STATUS EKONOMI PEKEBUN KECIL KELAPA DI HILIR PERAK AND PERAK TENGAH: ECONOMIC STATUS OF COCONUT SMALHOLDERS IN HILIR PERAK AND PERAK TENGAH”. Management Research Journal, vol. 3, Oct. 2014, pp. 107-19, https://ejournal.upsi.edu.my/index.php/MRJ/article/view/1500.