AKPAN, S. B.. OIL PALM FRUIT SUPPLY FUNCTION IN NIGERIA. Ife Journal of Agriculture, [S.l.], v. 31, n. 3, p. 10-26, nov. 2019. ISSN 0331-6351. Available at: <https://ija.oauife.edu.ng/index.php/ija/article/view/181>. Date accessed: 29 mar. 2020.