Atchara Boonmala และ Suphot Phatanasri. (2013) Adsorption of butadiene from C4 gas mixture on Y-zeolite adsorbent ion-exchanged with nickel. Chulalongkorn University:ม.ป.ท.Atchara Boonmala และ Suphot Phatanasri. 2013. Adsorption of butadiene from C4 gas mixture on Y-zeolite adsorbent ion-exchanged with nickel. ม.ป.ท.:Chulalongkorn University;Atchara Boonmala และ Suphot Phatanasri. Adsorption of butadiene from C4 gas mixture on Y-zeolite adsorbent ion-exchanged with nickel. ม.ป.ท.:Chulalongkorn University, 2013. Print.