DEVARAS, Luz A.; ESCALADA, Rodolfo G.; QUIROL, Bernadette F. EFFECT OF FLY ASH ON THE GROWTH AND YIELD OF SWEET POTATO. Annals of Tropical Research, [S. l.], v. 4, n. 2, p. 85–91, 1982. Disponível em: https://atr.vsu.edu.ph/article/view/762. Acesso em: 5 dec. 2025.