François N. Dubé, et al. “HALAL CERTIFICATION SYSTEM AS A KEY DETERMINANT OF FIRM INTERNATIONALISATION IN THE PHILIPPINES AND MALAYSIA”. Asian Academy of Management Journal, vol. 21, no. 1, Jan. 2016, pp. 73–88, https://ejournal.usm.my/aamj/article/view/aamj_vol21-no-1-2016_4.