Sahat Simbolon, Aryadi, and Muhtadan, “THE USE OF DIGITAL IMAGE PROCESSING IN ANALYSIS OF BORON, CADMIUM IN THORIUM OXIDE WITHOUT CARRIER DISTILATION WITH EMISSION SPECTROGRAPH METHOD”, Ganendra: Majalah IPTEK Nuklir, vol. 15, no. 1 Januari, pp. 39–48, Mar. 2026.