Kurniawan, K. S., Dwi Oktaviani, and Taat Guswantoro. “Measurement of Surface Dose Increase in Radiotherapy Boluses Using Polymer Clay Material Mixed With Al2O3 Metal Powder”. Phi_TERA : Journal of Physics in Teaching, Education Research and Application, vol. 1, no. 1, July 2024, pp. 29-36, http://ejournal.fkipuki.org/index.php/phi-tera/article/view/245.