Novanto, A. E. .; Sutama, S.; Desstya, A. .; Prastiwi, Y. .; Rahmawati, L. E. Development of Optical Equipment Learning Media With the Utilization of Used Goods in Elementary School Science Subjects. jppipa, pendidikan ipa, fisika, biologi, kimia 2023, 9, 1151-1164.