Kosov, Michael Evgenievich, Ravil Gabdullaevich Akhmadeev, Vladimir Mikhailovich Smirnov, Sergey Yuryevich Popkov, Nataliya Sergeevna Shmigol, and Alexander Yurievich Chernov. “Choosing the Investment Business Model for the Energy Industry”. Amazonia Investiga 8, no. 20 (June 25, 2019): 544–558. Accessed July 22, 2024. https://amazoniainvestiga.info/index.php/amazonia/article/view/181.