Chartaruchirakorn, Kasem. “Influence of Chemical Fertilizer and Farmyard Manure on Thai Geen Stem Kenaf Fiber”. Thai Agricultural Research Journal 3, no. 1 (January 1, 1985): 13–16. accessed October 1, 2026. https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/245226.