Moncayo, Kathleen Ai O. and Roa, Ma. Loisa P. (2008) Comparative study on the molluscicidal effects of the leaf extract of Ageratum conyzoides Linn. (Goat weed) and Citrus microcarpa (Calamansi) on Pomacea canaliculata Lam. (Golden apple snail). Undergraduate thesis, De La Salle University-Dasmariñas.