Siregar, Rawati. 2019. “EFEKTIVITAS MENGUNYAH TEBU TERHADAP INDEKS PLAK PADA SISWA/I SD NEGERI 060937 MEDAN JOHOR”. Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist) 13 (2):140-43. https://doi.org/10.36911/pannmed.v13i2.403.