جبيلي ه., ابظلي ه., ابراهيم أ., and حاتم أ. “Measurement of Radioactivity Concentration of Radioisotopes 228Ac, 212Bi, 214Bi, 214Pb, 212Pb in Phosphate Deposits in the Syrian Coast”. Tishreen University Journal -Basic Sciences Series, vol. 42, no. 2, June 2020, https://journal.tishreen.edu.sy/index.php/bassnc/article/view/9633.