Mashirova, Tazhikul, Karlygash Tastanbekova, Murat Nurgabylov, Gulnar Lukhmanova, and Kundyz Myrzabekkyzy. “Analysis of the Relationship Between the Highest Price and the Trading Volume of the Energy Company Shares in Kazakhstan With Frequency Domain Causality Method”. International Journal of Energy Economics and Policy 13, no. 4 (July 9, 2023): 22–27. Accessed May 13, 2024. https://econjournals.com/index.php/ijeep/article/view/14353.