Principles and Theories of Sharia Economic Law Studies on the sources, principles, and foundations of Sharia Economic Law; the role of maqashid shariah in economics; the relationship between Islamic law, customary law, and positive law in the economic field; as well as philosophical and methodological analyses of economic law. Islamic Banking and Finance Covering Islamic banking law, regulation and supervision, Sharia banking contracts (murabahah, mudharabah, musyarakah, ijarah, etc.), risk management, and dispute resolution in Islamic banking. Non-Bank Islamic Financial Institutions Studies on the legal framework and regulation of Islamic microfinance institutions (BMT), Sharia cooperatives, Sharia financing companies, Islamic fintech, Islamic pawnshops, as well as mechanisms and legal protection for customers. Islamic Capital Market and Investment Including Islamic capital market law, sukuk, Islamic mutual funds, Sharia-compliant stocks, mechanisms for trading Sharia securities, and investor protection under Sharia principles. Islamic Insurance and Guarantee (Takaful and Kafalah) Discussions on regulation, contracts, operational mechanisms, fund management, and claim settlements in Islamic insurance and Sharia-based guarantee institutions. Law of Zakat, Infaq, Sadaqah, and Waqf Studies on the regulation and governance of zakat, infaq, sadaqah, and waqf, as well as innovations in Islamic philanthropic instruments, including distribution and utilization for community economic empowerment. Business, Trade, and the Halal Industry Covering the law of sale and purchase, Sharia-compliant e-commerce, Sharia-based international trade, the halal industry (food, cosmetics, pharmaceuticals, tourism), as well as halal certification and supervision. Dispute Resolution in Sharia Economic Law Including the role of Religious Courts, the National Sharia Arbitration Board (BASYARNAS), and mediation; legal procedures and jurisprudence of Sharia economic disputes in Indonesia and other Muslim countries. Reform and Codification of Sharia Economic Law Studies on regulatory development, codification of Sharia Economic Law, legislative reforms, and harmonization of Sharia law with national and international legal systems. Empirical Studies on the Practice of Sharia Economic Law Field research on the implementation of Sharia Economic Law in society, the role of culture and local customs, and analysis of regulatory effectiveness in promoting Sharia financial inclusion and literacy.