R.V. Labana, J.Z. Dungca and V. Nissapatorn 2018. Presence of Cryptosporidium and Giardia in the water sources of indigenous peoples in Boliwong, Philippines. Asian Pacific Journal of Health Sciences. 5, 3 (Sep. 2018), 163–166. DOI:https://doi.org/10.21276/apjhs.2018.5.3.21.