Ali AA, AL-Abady FM, Ahmed SI. Calculating the Theoretical Octane Number for a Number of Petroleum Derivatives Using Quantum Mechanical Methods AM1 and PM3. SEEJPH [Internet]. 2024 Sep. 30 [cited 2025 Oct. 12];:91-104. Available from: https://seejph.com/index.php/seejph/article/view/962