B.R. Vahid, N. Saghatoleslami, A. Maskooki, H. Nayebzadeh. Preparation of nano size Al-promoted sulfated zirconia and assessments of calcinations temperature on its activity. Chem. Biochem. Eng. Q. 26 (2) 71–77 (2012)

H. Nayebzadeh, N. Saghatoleslami, A. Maskooki, B.R. Vahid. Effect of calcination temperature on catalytic activity of synthesis SrO/S-ZrO₂ by solvent-free method in esterification of oleic acid. Chem. Biochem. Eng. Q., 27 (3) 267–273 (2013)