Hayat T, Kamal ASMM. Application of GPR to Detect Lost Valve Chambers in a Utility Network. Dhaka Univ J Earth Env Sci [Internet]. 2024 Jun. 24 [cited 2024 Nov. 21];12(2):139-51. Available from: https://banglajol.info/index.php/DUJEES/article/view/73172