Noppamas Soonthronchareonnon. 1982. A study on the chemistry and in-vitro antimalarial activity of Eurycoma longifolia Jack and other Thai medicinal plants. Faculty of Graduate Studies, Mahidol University;

Noppamas Soonthronchareonnon. A study on the chemistry and in-vitro antimalarial activity of Eurycoma longifolia Jack and other Thai medicinal plants. . Bangkok:Mahidol University, 1982.

Noppamas Soonthronchareonnon. (1982) A study on the chemistry and in-vitro antimalarial activity of Eurycoma longifolia Jack and other Thai medicinal plants . Mahidol University/Bangkok.