Tyagi, DPal, GTewari, P K1983-05-012009-05-311983-05-012009-05-311983-05-01Tyagi D, Pal G, Tewari PK. Menarcheal age among Oraon and Munda girls of Ranchi. Journal of the Indian Medical Association. 1983 May; 80(9-10): 133-4http://imsear.searo.who.int/handle/123456789/96273engAdolescentAge FactorsChildEthnic GroupsFemaleHumansIndiaMenarcheJournal Article