Chanda, P; Hawela, M; Mharakurwa, S; Shinondo, C; Roper, C; Pota, H; (2007) Frequency of Plasmodium falciparum dihydrofolate reductase and dihydropteroate synthase markers in six Districts in Zambia. Medical Journal of Zambia, 34. pp. 58-61. https://researchonline.lshtm.ac.uk/id/eprint/2869460 Full text not available from this repository.