“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]”. 2022. Jurnal Pengabdian Isola 1 (1): 17-20. https://ejournal-science.upi.edu/jpi/article/view/1507.