@article {haider2016intra,
	title = {Intra-utility performance management model (In-UPM) for the sustainability of small to medium sized water utilities: Conceptualization to development},
	journal = {Journal of Cleaner Production},
	volume = {133},
	year = {2016},
	pages = {777{\textendash}794},
	publisher = {Elsevier},
	author = {Haider, Husnain and Sadiq, Rehan and Tesfamariam, Solomon}
}
