. . S. L. . Rismana, N. S. Ningsih, F. Fathiah, and H. Halimah, “The Effectiveness of Combination Toothbrushing Techniques on Oral Hygiene Index (PHP-M) in Pre-School Children at Harapan Indah Kindergarten, Pontianak: Efektifitas Teknik Menyikat Gigi Kombinasi Terhadap Indeks Kebersihan Mulut (PHP-M) Pada Anak Pra-Sekolah Di TK Harapan Indah Pontianak”, DTJ, vol. 2, no. 2, pp. 44–54, Nov. 2020.