Physico–Chemical Characterization of Vanadium–Phosphorus–Oxide Catalysts Prepared in Organic and Aqueous Medium. Jurnal Teknologi, [S. l.], v. 34, n. 1, p. 17–24, 2012. DOI: 10.11113/jt.v34.637. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/637.. Acesso em: 23 jul. 2024.