Rachev. Proceedings of the 4th international conference conference on Computer systems and technologies: E-Learning. Association for Computing Machinery (ACM).
Παραπομπή σε μορφή Chicago (17η εκδ.)Rachev. Proceedings of the 4th International Conference Conference on Computer Systems and Technologies: E-Learning. Association for Computing Machinery (ACM).
Παραπομπή σε μορφή MLA (9th εκδ.)Rachev. Proceedings of the 4th International Conference Conference on Computer Systems and Technologies: E-Learning. Association for Computing Machinery (ACM).
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.