Huỳnh Xuân Trường. “Synthesis of Nano Materials on the Base of Rice Husk Ash and CeO2 for Application As a Growth Stimulant for Bell Peeppers Plan (capsicum Annuum L.)”. Hue University Journal of Science: Natural Science 133, no. 1C (September 30, 2024). Accessed November 14, 2024. http://222.255.146.83/index.php/hujos-ns/article/view/7455.