Confidence Intervals for Coefficient of Variation of Inverse Gaussian Distribution. - Wasana Chankham; Sa-Aat Niwitpong; Suparat Niwitpong (ICVISP, 2019)

Confidence Intervals for the Difference Between the Coefficients of Variation of Inverse Gaussian Distributions. - Wasana Chankham; Sa-Aat Niwitpong; Suparat Niwitpong (IUKM, 2020)

Confidence intervals for ratio of coefficients of variation of Inverse Gaussian distribution. - Wasana Chankham; Sa-Aat Niwitpong; Suparat Niwitpong (ICBICC, 2022)

Route selection in multimodal supply chains: A fuzzy risk assessment model-BWM-MARCOS framework. - Nitidetch Koohathongsumrit; Wasana Chankham (Appl. Soft Comput., 2023)

The Simultaneous Confidence Interval for the Ratios of the Coefficients of Variation of Multiple Inverse Gaussian Distributions and Its Application to PM2.5 Data. - Wasana Chankham; Sa-Aat Niwitpong; Suparat Niwitpong (Symmetry, 2024)

Confidence Intervals for Percentile of Inverse Gaussian Distribution with Application to PM2.5 in Bangkok, Thailand. - Wasana Chankham; Nitidetch Koohathongsumrit; Sa-Aat Niwitpong (IUKM (2), 2025)

A Fuzzy Goal Programming Approach for Production Planning in Packaging Industry. - Nitidetch Koohathongsumrit; Wasana Chankham; Akkaranan Pongsathornwiwat; Wanatchapong Kongkaew (IUKM (2), 2025)