Sanga, O. K. M. (1985). Methods of scientific research. Mzumbe University.
芝加哥风格引文Sanga, O. K. M. Methods of Scientific Research. Morogoro: Mzumbe University, 1985.
MLA引文Sanga, O. K. M. Methods of Scientific Research. Mzumbe University, 1985.
警告：这些引文格式不一定是100％准确.