“Drilling Bit Selection in a Formation With Different Sedimentary Facies Using the Markov Chain: A Case Study at One of the Oil Fields in the South of Iran”. Rudarsko-geološko-Naftni Zbornik, vol. 36, no. 2, Mar. 2021, pp. 83-92, https://doi.org/10.17794/rgn.2021.2.8.