Doneva, N., Hadzi-Nikolova, M. and Mijaklovski, S. (2019) “ANALYSIS OF REQUIRED CONSTRUCTION TIME FOR DRIFT IN ROCK TYPE – LEAD AND ZINK ORE”, Natural Resources and Technology, 13(13), pp. 5-9. Available at: https://js.ugd.edu.mk/index.php/NRT/article/view/3065 (Accessed: 24April2024).