Economic and Environmental Geology

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Fig. 3.

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Fig. 3. Results map of the closest path analysis for (a) the sand and (b) gravel supply in a transportation network.
Econ. Environ. Geol. 2021;54:515-33 https://doi.org/10.9719/EEG.2021.54.5.515
© 2021 Econ. Environ. Geol.