Piyajit Watcharasit. 1990. Toxigenic and pathogenic activity of aspergillus flavus in the rats. Bangkok:Mahidol University;
Piyajit Watcharasit. (1990) Toxigenic and pathogenic activity of aspergillus flavus in the rats (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Piyajit Watcharasit. Toxigenic and pathogenic activity of aspergillus flavus in the rats. Bangkok:Mahidol University, 1990.
Piyajit Watcharasit. (1990) Toxigenic and pathogenic activity of aspergillus flavus in the rats (รายงานผลงานวิจัย). Mahidol University:Bangkok.