. . A. A. . Khin, . . H. W. . Mun, . . L. C. . Wei, . . A. S. A. . Salim, and . . K. J. . Han, “Factors affecting for sustainable improvement of palm oil industry in the world market: Ex-post forecast approach”, 5004, vol. 15, no. 2, pp. 40–52, May 2025.