Nereus Tugur Redationo, Bernardus Crisanto Putra Mbulu and Febri Valen Herwinsha (2023) “DIFFERENCES IN TEMPERATURE OF SOLAR COLLECTORS USING PAINT WITH A MIXTURE OF COCONUT SHELL CARBON AND PALM SHELL”, Mechanical, Energy and Material (METAL), 1(1), pp. 16–24. doi: 10.59581/metal.v1i1.40.