ก๋องใจ ศ., ธีรเวชญาณ ถ. and โตชัยวัฒน์ ก. (2012) “A Comparative Study of Pipe Jacking Technicquesof theProvincial Waterworks Authority”, Frontiers in Engineering Innovation Research, 2, pp. 39–47. available at: https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242120 (accessed: 12 September 2026).