Sumitra Ratananontachai. 1998. Physical and drug permeability characteristics of chitosan-anionic polymer complex films. Faculty of Graduate Studies, Mahidol University;
Sumitra Ratananontachai. (1998) Physical and drug permeability characteristics of chitosan-anionic polymer complex films . Mahidol University/Bangkok.
Sumitra Ratananontachai. Physical and drug permeability characteristics of chitosan-anionic polymer complex films. . Bangkok:Mahidol University, 1998.
Sumitra Ratananontachai. (1998) Physical and drug permeability characteristics of chitosan-anionic polymer complex films . Mahidol University/Bangkok.