“DEVELOPMENT OF DUAL-AXIS SUN TRACKER BASED ON TETRAHEDRON GEOMETRY USING PHOTOTRANSISTOR SENSOR”. Proceeding on Computer and Electrical Education Research (PROCESSOR) 1, no. 1 (March 31, 2023): 91–102. Accessed October 18, 2026. https://journal.ar-raniry.ac.id/index.php/PROCESSOR/article/view/2881.