Purpose: This research focuses on microeconomics and Tawhid String Relation (TSR) in relation to Islamic law (Shariah) as it is used in everyday problem solving. Design/Methodology/Approach: This study uses the content analysis method through a documentation study. Findings: The results indicate that financial resources are not the only productive assets of individuals but what they are needed for the development of other factors within the Islamic concept. Practical Implications: The study can contribute to promoting Islamic assets—e.g. micro-financing, Islamic Bank, Waqf, and Accounting zakat—which emphasize social justice. Regarding future research, the present findings need to be tested in the field. Originality/Value: The study contributes to compiles prior research and contributes new interpretations to Indonesian researchers, especially concerning ethical, moral, social and religious factors that promote Islamic assets (e.g. the use of microfinance to emphasize social justice in accordance with Shariah).