Thitiya Pung. 1992. The effects of DDT on cholinergic muscarinic responses. Faculty of Graduate Studies, Mahidol University;
Thitiya Pung. (1992) The effects of DDT on cholinergic muscarinic responses . Mahidol University/Bangkok.
Thitiya Pung. The effects of DDT on cholinergic muscarinic responses. . Bangkok:Mahidol University, 1992.
Thitiya Pung. (1992) The effects of DDT on cholinergic muscarinic responses . Mahidol University/Bangkok.