Sulistyani, Sulistyani. “DEVELOPMENT OF RESEARCH METHODS SPESI CR (VI) USING PRAKONCENTRATION TECHNIQUES BASED ON INJECTION ANALYSIS OF FLOW”. Jurnal Penelitian Saintek 17, no. 1 (April 2, 2014). Accessed May 15, 2025. https://jurnal.uny.ac.id/index.php/saintek/article/view/1749.