Julita, Wuri, and Zulyusri Zulyusri. 2023. “Analysis of the Importance of Enhancing the Qualifications of Biology Teachers As Professional Educators in the 21st Century Digital Era”. Journal of Digital Learning and Education 3 (2). Deli Serdang, Indonesia:117-28. https://doi.org/10.52562/jdle.v3i2.744.