Muller, A. S., Leeuwenburg, J. & Pratt, D. S.(1986). Pertussis: epidemiology and control.. Bulletin of the World Health Organization, 64 (2), 321 - 331. World Health Organization. https://iris.who.int/handle/10665/264406
Journal
Bulletin of the World Health Organization, 64 (2): 321 - 331
