“The Analysis of WTO mandatory and facultative Agreements: Application of Sanitary and Phytosanitary Measures (SPS) and Government Procurement” (2019) International relations and international law Journal, 84(4), pp. 76–87. Available at: https://bulletin-ir-law.kaznu.kz/index.php/1-mo/article/view/962 (Accessed: 18 July 2026).