Heterogeneous Esterification of Waste Cooking Oil with Sulfated Titanium Dioxide (STi). - Berrones-Hernández, Roberto; del Carmen Pérez-Luna, Yolanda; Sánchez-Roque, Yazmin; Pantoja-Enríquez, Joel; Grajales-Penagos, Amairani Leticia; López-Cruz, Carlos Francisco; Longoria, Adriana; Eapen, D.; Sebastian, P. J. (BioEnergy Research, 2019)