Chotchutima, Songyos, et al. “Influence of Fly Ash As a Soil Conditioner on the Growth and Yield Performance of Napier Grass (Pennisetum Purpureum)”. BioResources, vol. 21, no. 1, Jan. 2026, pp. 2080-0, https://ojs.bioresources.com/index.php/BRJ/article/view/25261.