Open University Establishment Act Article 4
An open university uses one or a combination of more than one type of broadcast media, such as radio, television, and the Internet, to implement teaching supplemented by face-to-face instruction, written guidance and other appropriate teaching methods.
中文原文 空中大學設置條例第4條
空中大學採用廣播、電視、網際網路等一種或結合一種以上傳播媒體實施教學，並輔以面授、書面輔導及其他適當教學方式施教。