Yussuf, N. M., M. A. Saeed, H. Wagiran, and I. Hossain. “Study on Radionuclides from Soil to Onion at Johor and Perak, Malaysia”. Physical Science International Journal 25, no. 5 (September 16, 2021): 30-36. Accessed October 20, 2021. https://journalpsij.com/index.php/PSIJ/article/view/30257.