“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]”, JPI, vol. 1, no. 1, pp. 17–20, Jun. 2022, Accessed: Oct. 09, 2026. [Online]. Available: https://ejournal-science.upi.edu/jpi/article/view/1507