共 50 条
- [6] GROUP-TESTING VIA CLOSED-CIRCUIT TELEVISION VOCATIONAL GUIDANCE QUARTERLY, 1963, 11 (02): : 80 - 84
- [8] CLOSED-CIRCUIT TELEVISION STANDARDS JOURNAL OF THE SOCIETY OF MOTION PICTURE TELEVISION ENGINEERS, 1968, 77 (7P1): : 735 - &
- [9] TEACHING BY CLOSED-CIRCUIT TELEVISION JOURNAL OF THE SMPTE-SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS, 1956, 65 (09): : 526 - 526