Chathuranga, M., Darwin, N., Ahmad, A., Sandamali, J. and Gohari, A. 2025. Trends, Advancements, and Future Directions of Unmanned Aerial Vehicle Technology-Based Stockpile Volume Estimation: A Systematic Review. International Journal of Geoinformatics. 21, 11 (Dec. 2025), 94–120. DOI:https://doi.org/10.52939/ijg.v21i11.4605.