Pornpop Saengthong. (2014) Parameters Estimation Methods for the Negative Binomial-Crack Distribution and Its Application. <i>Journal of SCIENCE and TECHNOLOGY Mahasarakham University</i>, <i>33</i>(2), 125-130.Pornpop Saengthong. "Parameters Estimation Methods for the Negative Binomial-Crack Distribution and Its Application". Journal of SCIENCE and TECHNOLOGY Mahasarakham University 33 (2014):125-130.Pornpop Saengthong. Parameters Estimation Methods for the Negative Binomial-Crack Distribution and Its Application. Mahasarakham University:ม.ป.ท. 2014.