1. Plasmodium resistance to chloroquine: a new hypothesis;Charet;Transactions of the Royal Society of Tropical Medicine and Hygiene,1985
2. Plasmodium malaria resistant to chloroquine in a Zambian living in Zambia;Ekue;British Medical Journal,1983
3. The eosin colour test of Dill and Glazko: a simple field test to detect chloroquine in urine;Lelijveld;Bulletin of the World Health organization,1970
4. Practical aspects of the use of the standard WHO in vitro macro- and microtest systems for the determination of the sensitivity of Plasmodium falciparum to chloroquine, mefloquine, amodiaquine and quinine;Payne,1984
5. Chemotherapy of malaria and resistance to antimalarials;WHO,1973