Tunlawit Satapanajaru. 1996. Preliminary assessment on reference elements in Mae Klong watershed for sediments analysed by total digestion method. Bangkok:Chulalongkorn University;
Tunlawit Satapanajaru. (1996) Preliminary assessment on reference elements in Mae Klong watershed for sediments analysed by total digestion method (รายงานผลงานวิจัย). Chulalongkorn University:Bangkok.
Tunlawit Satapanajaru. Preliminary assessment on reference elements in Mae Klong watershed for sediments analysed by total digestion method. Bangkok:Chulalongkorn University, 1996.
Tunlawit Satapanajaru. (1996) Preliminary assessment on reference elements in Mae Klong watershed for sediments analysed by total digestion method (รายงานผลงานวิจัย). Chulalongkorn University:Bangkok.