id	domain	url
essd-253	www.press.ierek.com	http://www.press.ierek.com
essd-253	creativecommons.org	https://creativecommons.org/licenses/by/4.0/)
essd-253	creativecommons.org	https://creativecommons.org/licenses/by/4.0
essd-253	crossmark.crossref.org	https://crossmark.crossref.org/dialog/?doi=10.21625/essd.v3iss1.253&domain=press.ierek.com
essd-253	doi.org	https://doi.org/10.1007/s10452-010-9313-0
essd-253	www.lwua.gov.ph	http://www.lwua.gov.ph/tech