APA (7th ed.) Citation

Tyrväinen Heli, Uotinen Sanna, & Valkonen Leena. (2021). Instructor Presence in a Virtual Classroom. De Gruyter.

Chicago Style (17th ed.) Citation

Tyrväinen Heli, Uotinen Sanna, and Valkonen Leena. Instructor Presence in a Virtual Classroom. De Gruyter, 2021.

MLA (9th ed.) Citation

Tyrväinen Heli, et al. Instructor Presence in a Virtual Classroom. De Gruyter, 2021.

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