©2013 National Research Council of Thailand
Sommai Tangchitpianvit. 1996. The effect of preparation techniques on vitamin A content of indigenous foods in northeast Thailand. Bangkok:Mahidol University;
Sommai Tangchitpianvit. (1996) The effect of preparation techniques on vitamin A content of indigenous foods in northeast Thailand (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Sommai Tangchitpianvit. The effect of preparation techniques on vitamin A content of indigenous foods in northeast Thailand. Bangkok:Mahidol University, 1996.
Sommai Tangchitpianvit. (1996) The effect of preparation techniques on vitamin A content of indigenous foods in northeast Thailand (รายงานผลงานวิจัย). Mahidol University:Bangkok.