Poonchayar Patthanangkoor และผู้แต่งคนอื่นๆ. (2020) Formulas of the Exponential Matrix for Some Real Semi SkewSymmetric Matrix of Order 5. <i>Thai Journal of Science and Technology</i>, <i>9</i>(2), 197-206.Poonchayar Patthanangkoor และผู้แต่งคนอื่นๆ. "Formulas of the Exponential Matrix for Some Real Semi SkewSymmetric Matrix of Order 5". Thai Journal of Science and Technology 9 (2020):197-206.Poonchayar Patthanangkoor และผู้แต่งคนอื่นๆ. Formulas of the Exponential Matrix for Some Real Semi SkewSymmetric Matrix of Order 5. Thammasat University:ม.ป.ท. 2020.