1. Plastic waste inputs from land into the ocean
2. River plastic emissions to the world’s oceans
3. UN Environment (2017). Marine Litter Socio Economic Study, United Nations Environment Programme, Nairobi. Kenya.
4. Abreo, N.A. (2018) Marine Plastics in the Philippines: A Call for Research. Philippine Science Letters, 11, 20-21.
5. Abreo, N.A., Macusi, E., Blatchley, D. and Cuenca, G. (2016) First Evidence of Plastic Ingestion by the Rare Deraniyagala’s Beaked Whale (Mesoplodon hotaula). IAMURE International Journal of Ecology and Conservation, 19, 16-36.