Berkalov S. V. Sergey Vitalievich & Kiseleva E. S. Elena Stanislavovna. (2018). Social And Private Partnership Through Contractual Arrangement; The European Proceedings of Social & Behavioural Sciences (EpSBS); Vol. 38: Lifelong Wellbeing in the World (WELLSO 2017). 2018. https://doi.org/10.15405/epsbs.2018.04.6
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিBerkalov S. V. Sergey Vitalievich এবং Kiseleva E. S. Elena Stanislavovna. Social And Private Partnership Through Contractual Arrangement; The European Proceedings of Social & Behavioural Sciences (EpSBS); Vol. 38: Lifelong Wellbeing in the World (WELLSO 2017). 2018, 2018. https://doi.org/10.15405/epsbs.2018.04.6.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিBerkalov S. V. Sergey Vitalievich এবং Kiseleva E. S. Elena Stanislavovna. Social And Private Partnership Through Contractual Arrangement; The European Proceedings of Social & Behavioural Sciences (EpSBS); Vol. 38: Lifelong Wellbeing in the World (WELLSO 2017). 2018, 2018. https://doi.org/10.15405/epsbs.2018.04.6.