Amelia, Rizki Nor, Anggi Ristiyana Puspita Sari, Sri Rejeki Dwi Astuti, and Dian Normalitasari Purnama. “Using Andrich Rating Scale Model In Psychometric Analysis Of General Chemistry I Essay Test”. Jurnal Ilmiah Kanderang Tingang 14, no. 1 (February 9, 2023): 92-101. Accessed August 26, 2025. https://www.chem-upr.education/ojs/index.php/JIKT/article/view/180.