Sunthō̜nchai Chō̜pyot. (2018). Rōngsīkhāo chumchon: Nǣokhit læ nǣothāng kānphatthanā sētthakit thō̜ngthin thī yangyư̄n (Phim khrang thī 2.). Khrōngkān Phalit læ Phœ̄iphrǣ Tamrā læ Ngān Wichākān (COPAG Press), Witthayālai Kānmư̄ang Kānpokkhrō̜ng, Mahāwitthayālai Mahā Sārakhām.
Chicago-referens (17:e uppl.)Sunthō̜nchai Chō̜pyot. Rōngsīkhāo Chumchon: Nǣokhit Læ Nǣothāng Kānphatthanā Sētthakit Thō̜ngthin Thī Yangyư̄n. Phim khrang thī 2. Mahā Sārakhrām: Khrōngkān Phalit læ Phœ̄iphrǣ Tamrā læ Ngān Wichākān (COPAG Press), Witthayālai Kānmư̄ang Kānpokkhrō̜ng, Mahāwitthayālai Mahā Sārakhām, 2018.
MLA-referens (8:e uppl.)Sunthō̜nchai Chō̜pyot. Rōngsīkhāo Chumchon: Nǣokhit Læ Nǣothāng Kānphatthanā Sētthakit Thō̜ngthin Thī Yangyư̄n. Phim khrang thī 2. Khrōngkān Phalit læ Phœ̄iphrǣ Tamrā læ Ngān Wichākān (COPAG Press), Witthayālai Kānmư̄ang Kānpokkhrō̜ng, Mahāwitthayālai Mahā Sārakhām, 2018.