Cortez, Leah Amor S. (2019) Environmental and human health risk assessment in gold mining sites of paracale, Camarines Norte as basis of sustainable management plan. Dissertation thesis, De La Salle University-Dasmariñas.

Cortez, Leah Amor S. (2011) Heavy metal concentrations of dumpsite soils and accumulation in selected plant species growing in Smokey Mountain, Tondo, Manila. Masters thesis, De La Salle University - Dasmariñas.