(2018). Biogas: from Production to Purification. Iranian Chemical Engineering Journal, 17(98), 52-70.

. "Biogas: from Production to Purification", Iranian Chemical Engineering Journal, 17, 98, 2018, 52-70.

(2018). 'Biogas: from Production to Purification', Iranian Chemical Engineering Journal, 17(98), pp. 52-70.

, "Biogas: from Production to Purification," Iranian Chemical Engineering Journal, 17 98 (2018): 52-70,

Biogas: from Production to Purification. Iranian Chemical Engineering Journal, 2018; 17(98): 52-70.