1. A. Balasubramanian, Coal Mining Methods, Technical report, (2016).https://doi.org/10.13140/RG.2.2.19117.08162.
2. Experimental Research on Wear of Conical Pick Interacting with coal-rock;Liu;Eng. Fail. Anal.,2017
3. A.P. Schissler, Coal Mining Design and Method: Encyclopedia of energy, in: C.J. Cleveland, Encyclopedia of Energy, Elsevier Academic, 2004, 485–494.
4. Minerals Council, South Africa, mining for schools. https://www.miningforschools.co.za/lets-explore/coal/coal-mining-technology, 2019 (Accessed 14 November 2021).
5. Directions for increasing conical picks’ durability;Boloz;New Trends in Eng. Prod.,2019