nainggolan, sri junita. “GAMBARAN PH SALIVA TERHADAP KARIES GIGI PADA SISWA/I KELAS IV SD NEGERI 065015 KEMENANGAN TANI MEDAN TUNTUNGAN”. Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist) 11, no. 2 (November 5, 2018): 74–76. Accessed August 27, 2025. https://ojs.poltekkes-medan.ac.id/pannmed/article/view/76.