@article {kpt2019identifying,
	title = {Identifying the Optimum Path and the Positions of the Bends in PVC and DI Pipes in Underground Water Lines.},
	journal = {IOSR Journal of Mathematics (IOSR-JM)},
	volume = {15},
	number = {2},
	year = {2019},
	pages = {56{\textendash}61},
	publisher = {www.iosrjournals.org},
	url = {http://www.iosrjournals.org/iosr-jm/papers/Vol15-issue2/Series-2/I1502025661.pdf},
	author = {KPT Dayan, GHJ Lanel, USV Lakmal}
}
