Appau, K.J., I. Yakubu, and Y.Y. Ziggah. “Prediction of Zenith Tropospheric Delay in GNSS Application Using Machine Learning Models”. International Journal of Geoinformatics 21, no. 8 (August 24, 2025): 91–107. Accessed May 22, 2026. https://ijg.e-geoinfo.com/index.php/journal/article/view/4371.