Efremova O. N. Oksana Nikolaevna, Plotnikova I. V. Inna Vasilievna, & Ustyuzhanina A. K. Anna Konstantinovna. (2015). Forming Linguistic Competence of Foreign Students at the Preparatory Department of a Technical University; Procedia - Social and Behavioral Sciences; Vol. 215: International Education and Cross-Cultural Communication, Problems and Solutions, (IECC 2015). 2015. https://doi.org/10.1016/j.sbspro.2015.11.576
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Efremova O. N. Oksana Nikolaevna, Plotnikova I. V. Inna Vasilievna, و Ustyuzhanina A. K. Anna Konstantinovna. Forming Linguistic Competence of Foreign Students at the Preparatory Department of a Technical University; Procedia - Social and Behavioral Sciences; Vol. 215: International Education and Cross-Cultural Communication, Problems and Solutions, (IECC 2015). 2015, 2015. https://doi.org/10.1016/j.sbspro.2015.11.576.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Efremova O. N. Oksana Nikolaevna, et al. Forming Linguistic Competence of Foreign Students at the Preparatory Department of a Technical University; Procedia - Social and Behavioral Sciences; Vol. 215: International Education and Cross-Cultural Communication, Problems and Solutions, (IECC 2015). 2015, 2015. https://doi.org/10.1016/j.sbspro.2015.11.576.