Prayitno, G., and E. Sinduningrum. “Proses Pembuatan Selongsong Tabung Pelindung Detector Geiger Muller Tipe Side Window”. Prosiding Seminar Nasional Teknoka, vol. 3, Dec. 2018, pp. E60-E63, https://journal.uhamka.ac.id/index.php/teknoka/article/view/2823.