Raihan, M., and E. T. Astuti. “THERMAL EFFICIENCY ANALYSIS OF COFFEE BEAN ROASTER BASED ON PARABOLIC DISH COLLECTOR (PDC) WITH THE ADDITION OF FRESNEL GLASS AS A SOLAR RADIATION AMPLIFIER”. TOPLAMA, vol. 3, no. 2, Mar. 2026, pp. 110-25, doi:10.61397/tla.v3i2.500.