Benjawan Tookyang. 1997. Plant extracts for control of mosquito-borne disease vectors. Graduate School, Chiang Mai University;
Benjawan Tookyang. (1997) Plant extracts for control of mosquito-borne disease vectors . Chiang Mai University/Chiang Mai.
Benjawan Tookyang. Plant extracts for control of mosquito-borne disease vectors. . Chiang Mai:Chiang Mai University, 1997.
Benjawan Tookyang. (1997) Plant extracts for control of mosquito-borne disease vectors . Chiang Mai University/Chiang Mai.