Supoj Ua-apisitwong. 1991. Accuracy of equivalent square method in Cobalt-60 output calculation for various field sizes. Faculty of Graduate Studies, Mahidol University;
Supoj Ua-apisitwong. (1991) Accuracy of equivalent square method in Cobalt-60 output calculation for various field sizes . Mahidol University/Bangkok.
Supoj Ua-apisitwong. Accuracy of equivalent square method in Cobalt-60 output calculation for various field sizes. . Bangkok:Mahidol University, 1991.
Supoj Ua-apisitwong. (1991) Accuracy of equivalent square method in Cobalt-60 output calculation for various field sizes . Mahidol University/Bangkok.