Somsak Wongsawass. 1991. Factors affecting visual outcome after cataract extraction in Ramathibodi hospital. Bangkok:Mahidol University;
Somsak Wongsawass. (1991) Factors affecting visual outcome after cataract extraction in Ramathibodi hospital (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Somsak Wongsawass. Factors affecting visual outcome after cataract extraction in Ramathibodi hospital. Bangkok:Mahidol University, 1991.
Somsak Wongsawass. (1991) Factors affecting visual outcome after cataract extraction in Ramathibodi hospital (รายงานผลงานวิจัย). Mahidol University:Bangkok.