sarwodidoyo, S. E., Novizal, N., & Rahmawati, K. (2015). Indirect Validity Test of Measurement Instrumentation in Flow Injection Synthesis Technique of Cu-Zn Ferrite Formation Process. International Journal of Sciences: Basic and Applied Research (IJSBAR), 24(6), 348–360. Retrieved from https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/4919