Atoki L. GNSS/Levelling-Based Assessment of Vertical Deformation along the Jonathan Bypass Airport Road, Calabar (Nigeria), Using the 3-Sigma Statistical Criterion. FJS [Internet]. 2026 Jun. 22 [cited 2026 Jul. 10];10(10):190-201. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/5198