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Sooksri Ungboriboonpisal. 1992. The development of solid phase extraction and HPLC method for the simultaneous analysis of basic drugs in syrup formulation. Graduate School, Chulalongkorn University;
Sooksri Ungboriboonpisal. (1992) The development of solid phase extraction and HPLC method for the simultaneous analysis of basic drugs in syrup formulation . Chulalongkorn University/Bangkok.
Sooksri Ungboriboonpisal. The development of solid phase extraction and HPLC method for the simultaneous analysis of basic drugs in syrup formulation. . Bangkok:Chulalongkorn University, 1992.
Sooksri Ungboriboonpisal. (1992) The development of solid phase extraction and HPLC method for the simultaneous analysis of basic drugs in syrup formulation . Chulalongkorn University/Bangkok.