Puangpen Tangboonduangjit. 1996. The air gap effect on electron dose and depth dose of a linear accelerator. Faculty of Graduate Studies, Mahidol University;
Puangpen Tangboonduangjit. (1996) The air gap effect on electron dose and depth dose of a linear accelerator . Mahidol University/Bangkok.
Puangpen Tangboonduangjit. The air gap effect on electron dose and depth dose of a linear accelerator. . Bangkok:Mahidol University, 1996.
Puangpen Tangboonduangjit. (1996) The air gap effect on electron dose and depth dose of a linear accelerator . Mahidol University/Bangkok.