Djokorayono, R. .; Sulaksono, S. T. .; Seno, H. .; Utomo; Saptowati, H. .; Santoso, P. .; Hermana, F. .; Wiranto BS; Sumaryanto, A. . Gamma Spectroscopy Prototype Design to Identify Radioactive Elements. Internasional J.of Natural S and Engineering 2023, 7, 134-143.