Phuriwat Leesawat. 1991. Controlled release theophylline matrices prepared from co-spray dried theophylline-polymer-channeling agent. Graduate School, Chulalongkorn University;
Phuriwat Leesawat. (1991) Controlled release theophylline matrices prepared from co-spray dried theophylline-polymer-channeling agent . Chulalongkorn University/Bangkok.
Phuriwat Leesawat. Controlled release theophylline matrices prepared from co-spray dried theophylline-polymer-channeling agent. . Bangkok:Chulalongkorn University, 1991.
Phuriwat Leesawat. (1991) Controlled release theophylline matrices prepared from co-spray dried theophylline-polymer-channeling agent . Chulalongkorn University/Bangkok.