Haritsalak Viriya. (2015) Comparison of Solid Waste Composition between Regular and Weekend Programs at Nakhon Ratchasima Rajabhat University. <i>KKU Research Journal</i>, <i>20</i>(1), 34-41.Haritsalak Viriya. "Comparison of Solid Waste Composition between Regular and Weekend Programs at Nakhon Ratchasima Rajabhat University". KKU Research Journal 20 (2015):34-41.Haritsalak Viriya. Comparison of Solid Waste Composition between Regular and Weekend Programs at Nakhon Ratchasima Rajabhat University. Research and Technology Transfer Affairs Division:ม.ป.ท. 2015.