PARASHAR, A.; GUPTA, A.; MAHAJAN, N.; BARWAL, V.; VERMA, D.; SACHDEVA, A.; THAKUR, S. Immunization coverage in the district Sirmaur, Himachal Pradesh, India: evaluation using the 30 x 7 cluster sampling technique. International Journal Of Community Medicine And Public Health, [S. l.], v. 3, n. 11, p. 3117–3122, 2016. DOI: 10.18203/2394-6040.ijcmph20163921. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/110. Acesso em: 23 oct. 2025.