Sarun Wongwai. 2000. On quasi-principally injective modules and quasi-principally projective modules. Field of Study Mathematics, Chiang Mai University;
Sarun Wongwai. (2000) On quasi-principally injective modules and quasi-principally projective modules . Chiang Mai University/Chiang Mai.
Sarun Wongwai. On quasi-principally injective modules and quasi-principally projective modules. . Chiang Mai:Chiang Mai University, 2000.
Sarun Wongwai. (2000) On quasi-principally injective modules and quasi-principally projective modules . Chiang Mai University/Chiang Mai.