Open Science Research Excellence
Wongkha, A. , Niwitpong, S. , Niwitpong, S.. "Confidence Interval for the Inverse of a Normal Mean with a Known Coefficient of Variation". World Academy of Science, Engineering and Technology, International Science Index 81, International Journal of Mathematical, Computational, Physical, Electrical and Computer Engineering (2013), 7(9), 1408 - 1411.