Putra, Dike Fitriansyah, Mursyidah Umar, Lazuardhy Vozika Futur, and Aznil Arif Rahman. 2021. “Benefits of the Tracers Test Technique in Improving the Performance of Group Wells”. Journal of Earth Energy Engineering 10 (2):75-83. https://doi.org/10.25299/jeee.2021.4057.