Bhattarai, R., Khanal, S., Rao, G. N., Dhami, B., & Gupta, S. (2017). Oral Hygiene and Periodontal Health Status of Urban Population of Kathmandu District: A Pilot Study. Journal of Nepalese Society of Periodontology and Oral Implantology, 1(1), 12–16. https://doi.org/10.3126/jnspoi.v1i1.23521