Sippavit Wongsuwatt และ Sid Suntrayuth. (2018) The influence of risk perception and proactive behavior on performance of firms in the stock exchange of Thailand : the moderating roles of organizational units and types of firms. National Institute of Development Administration:ม.ป.ท.Sippavit Wongsuwatt และ Sid Suntrayuth. 2018. The influence of risk perception and proactive behavior on performance of firms in the stock exchange of Thailand : the moderating roles of organizational units and types of firms. ม.ป.ท.:National Institute of Development Administration;Sippavit Wongsuwatt และ Sid Suntrayuth. The influence of risk perception and proactive behavior on performance of firms in the stock exchange of Thailand : the moderating roles of organizational units and types of firms. ม.ป.ท.:National Institute of Development Administration, 2018. Print.