Niluh Ringga Woroprobosari, Nurul Rezki Utami, and Eko Hadianto. “Estimation of Biological Ages With Kvaal Method Using Panoramic Radiography in Semarang City”. Denta: Jurnal Kedokteran Gigi, vol. 14, no. 1, Aug. 2021, pp. 16-20, doi:10.30649/denta.v14i1.3.