1. GOST 4001-84, 2001. Natural rock wall blocks. Specifications, Russia: M.: Gosstroy of Russia.
2. National Bureau of Statistics, 2019. Production of main industrial products. [Online] Available at: https://statbank.statistica.md/PxWeb/pxweb/en/40%20Statistica%20economica/40%20Statistica%20economica__14%20IND__IND030/IND030100.px/?rxid=9a62a0d7-86c4-45da-b7e4-fecc26003802
3. NCM F.03.02-2005, 2005. Proiectarea clădirilor cu pereți din zidărie, Chisinau: Agenția pentru dezvoltarea regională a Republicii Moldova.
4. Oguzov, D., 2012. V chetyrekhkilometrovoy shakhte pod Kishinevom do sikh por dobyvayut material dlya stroitel’stva. [Online] Available at: https://point.md/ru/novosti/obschestvo/v-chetirehkilometrovojshahte-pod-kishinevom-do-sih-por-dobivayut-material-dlya-stroiteljstva
5. Prokopovich, L., 2006. MNOGOLIKIY IZVESTNYAK. [Online] Available at: https://www.nkj.ru/archive/articles/3277/