1. Aki @ Zaki Bin Aman, Er, A.C. & Chamhuri, S. (2015). Penanaman sawit lestari dan impak sosioekonomi. e-Bangi Journal of Social Sciences and Humanities, Vol. 10, No. 1, 057 080.
2. Azima, A.M., Er, A.C., Suhana, S., Sivapalan, S., Novel, L., Mohd Yusoff, H., Fuad, M.J., Zaimah, R. & Sarmila, M.S. (2013). Keterlibatan penduduk lokal dalam pembangunan pertanian: Kajian kes di Daerah Kuala Pilah, Negeri Sembilan. Geografia-Malaysian Journal of Society and Space, 9(1), pp.24-33. 3. Bernama. (2020). Sekatan import minyak sawit jejas pendapatan peneroka, pekebun kecil. Diakses dalam www.bernama.my (2 Oktober 2020).
4. Er, A.C. (2008a). Struktur dan pembangunan ekonomi di Daerah Kuala Langat. Dlm Katiman, R., Mokhtar, J., Noorazuan, M.H. (eds) Dinamika sosial, pembangunan dan persekitaran di Malaysia, pp.185-204, Book Pro Publishing: Pahang.
5. Er, A.C., Mohd Azlan, A. & Rosniza, M.Z. (2012). Kemampuan persekitaran kluster sawit: Kajian kes di sekitar Pulau Carey, Selangor, Malaysia. Geografia-Malaysia Journal of Society and Space 8, Issue 8 (121-129).
6. Fatin Umaira, M.A., Abd Hair, A., Izzurazlia, I., Zaimah, R., Novel, L., Ishak, Y., Khairuman, H., Tan, S.P., Mohamad Arfan, J., Nur Hana, B., Mohd Haidhar, A.H. (2017). Kelestarian penanaman sawit dan produktiviti pekebun kecil persendirian. Journal of Global Business and Social Enterpreneurship, Vol 1, No 1, pp. 12-20.
7. Izzurazlia, I., Abd Hair, A., & Azima, A.M. (2018). Persepsi perkhidmatan pengembangan dan amalan pertanian baik pekebun kecil sawit persendirian. e-Bangi Journal of Social Sciences and Humanities, Vol. 13, No. 13, 068-083.
8. Laziana, A. (2020). Kemampanan industri sawit. Diakses dalam www.bernama.com/bm/tintaminda/news.php?id=1869265 (12 Ogos 2020).
9. Novel, L. & Nurmahfuzah, R. (2015). Keperkasaan pekebun kecil kelapa sawit Bidayuh: Kajian kes di Daerah Serian, Sarawak. Georafia-Malaysian Journal of Society and Space 11, Issue 6 (36-46).
10. Scottis, A. (2009). Community Scotish Community Enpowerment Action Plan Celebrating Success: Inspring Change. Edinburgh. The Scottish Government.
11. Sivapalan, S., Novel, L. & Mohd. Helmi, A.R. (2018). Economic problems faced by oil palm smallholders and its solution: The case of Malaysia. Information, Vol. 21, No. 6, pp. 1789 1800.