Hariyanto B, M. Panggabean L, Hakim L. Characterization of Citra Beach Sand Sukamara Regency Using XRF and XRD. JJMS [Internet]. 2021 Jun. 22 [cited 2024 Apr. 18];3(1):11-4. Available from: https://e-journal.upr.ac.id/index.php/JMS/article/view/2904