Efficiency Analysis of Natural Rubber Production in ASEAN: The Comparison of Panel DEA and Bootstrapping Panel DEA Analysis Based Decision on Copula Approach. - Kewalin Somboon; Chukiat Chaiboonsri; Songsak Sriboonchitta (IUKM, 2018)

Investigating Structural Dependence in Natural Rubber Supplys Based on Entropy Analyses and Copulas. - Kewalin Somboon; Chukiat Chaiboonsri; Satawat Wannapan; Songsak Sriboonchitta (Structural Changes and their Econometric Modeling, 2019)