Chatiwong, T., P. Ussahawanitichakit, and S. Janjarasjit. “Proactive Internal Audit Strategy and Firm Performance: Empirical Evidence from Thai-Listed Firms”. AU-GSB E-JOURNAL, vol. 9, no. 1, Jan. 2017, p. 3, http://www.assumptionjournal.au.edu/index.php/AU-GSB/article/view/2517.