UTILIZATION OF SEM-EDX AND FTIR IN THE CHARACTERIZATION OF SELECTED SOILS AND PERIWINKLE SHELL ASH. Journal of Pure and Applied Sciences (Science Forum), [S. l.], v. 26, n. 5 (Special), 2026. DOI: 10.70882/gwpxnv97. Disponível em: https://atbuscienceforum.com.ng/index.php/jpas/article/view/483. Acesso em: 11 nov. 2026.