Yes, there are several academic journals that provide critical perspectives on global governance and international institutions for the PSIR optional subject. These journals offer in-depth analysis, research, and critical insights into various aspects of global governance and international institutions. Some of these journals include:

1. International Organization:
- This journal focuses on issues related to international institutions and global governance.
- It publishes articles that critically analyze the functioning, effectiveness, and impact of international institutions on global governance.
- The journal covers a wide range of topics including international law, international relations, and global governance.

2. Review of International Political Economy:
- This journal provides critical perspectives on global governance and international institutions from a political economy standpoint.
- It explores the role of international institutions in shaping and governing global economic relations.
- The journal publishes articles that critically analyze the policies, practices, and impacts of global economic governance.

3. Global Governance:
- This journal focuses specifically on global governance and provides critical perspectives on various aspects of international institutions.
- It covers a wide range of topics including global governance mechanisms, international organizations, and global policy-making processes.
- The journal publishes articles that critically analyze the effectiveness, legitimacy, and accountability of international institutions.

4. International Journal of Political Science and International Relations:
- This journal covers various topics in political science and international relations, including global governance and international institutions.
- It publishes articles that critically examine the role and functioning of international institutions in global governance.
- The journal provides a platform for scholars to present critical perspectives and engage in debates on global governance issues.

5. Journal of International Relations and Development:
- This journal focuses on the relationship between international relations and global development.
- It provides critical perspectives on the role of international institutions in promoting global development.
- The journal publishes articles that critically analyze the policies, practices, and impacts of international institutions on global development.

These academic journals offer valuable resources for students of PSIR optional subject to gain critical perspectives on global governance and international institutions. They provide a platform for scholars to present their research, engage in debates, and contribute to the understanding of global governance dynamics. Students can refer to these journals to enhance their knowledge and understanding of the subject, and to stay updated with the latest research and critical perspectives in the field of global governance and international institutions.