APA (7th ed.) Citation

Roy, S. S., & Gandhimathi, S. N. S. Self-directed learning for optimizing sustainable language learning via mobile assisted language learning: A systematic review. Frontiers Media S.A.

Chicago Style (17th ed.) Citation

Roy, S. Shalini, and S. N. S. Gandhimathi. Self-directed Learning for Optimizing Sustainable Language Learning via Mobile Assisted Language Learning: A Systematic Review. Frontiers Media S.A.

MLA (9th ed.) Citation

Roy, S. Shalini, and S. N. S. Gandhimathi. Self-directed Learning for Optimizing Sustainable Language Learning via Mobile Assisted Language Learning: A Systematic Review. Frontiers Media S.A.

Warning: These citations may not always be 100% accurate.