Nguyen และผู้แต่งคนอื่นๆ. 1996. Monitoring of organochlorine residues in hens' eggs in suburban areas of Chiang MaiNguyen Thi Van Ha. Graduate School, Chiang Mai University;
Nguyen และผู้แต่งคนอื่นๆ. (1996) Monitoring of organochlorine residues in hens' eggs in suburban areas of Chiang MaiNguyen Thi Van Ha . Chiang Mai University/Chiang Mai.
Nguyen และผู้แต่งคนอื่นๆ. Monitoring of organochlorine residues in hens' eggs in suburban areas of Chiang MaiNguyen Thi Van Ha. . Chiang Mai:Chiang Mai University, 1996.
Nguyen และผู้แต่งคนอื่นๆ. (1996) Monitoring of organochlorine residues in hens' eggs in suburban areas of Chiang MaiNguyen Thi Van Ha . Chiang Mai University/Chiang Mai.