“Deepening Learning and Material on Atomic Structure and Periodic Properties of Elements for Teachers in the Pangandaran Region [Pendalaman Pembelajaran Serta Materi Struktur Atom Dan Sifat Periodik Unsur Untuk Guru Di Wilayah Pangandaran]”. Jurnal Pengabdian Isola, vol. 1, no. 1, June 2022, pp. 17-20, https://ejournal-science.upi.edu/jpi/article/view/1507.