1. ASEAN Secretariat (2021). Non-Tariff Measures Cost-Effective Toolkit, Handbook for ASEAN, adapted from UNCTAD's 'Non-Tariff Measures Cost-Effective Toolkit', Jakarta, 9/2021, ISBN 978-623-6945-51-3 (EPUB).
2. Asian Trade Centre (2019). Non-tariff barriers (NTBs) in ASEAN and the removal of non-tariff measures from a business perspective. < https://www.eabc-thailand.org/wp-content/uploads/2019/06/NTB_Study_Report_FINAL.pdf> Accessed 20.6.2023.
3. Myrna. A. (2013). Non-tariff barriers: A challenge to achieving the ASEAN economic community. The ASEAN Economic Community: A Work in Progress.
4. Baldwin, R. (1970). Nontariff Distortions of International Trade. Brookings Institution Press.
5. Beghin, J., Disdier, A. C., Marette, S., & Van Tongeren, F. (2012). Welfare costs and benefits of non-tariff measures in trade: A conceptual framework and application. World Trade Review, 11(3), 356–375.