A compiler building system for small-scale computers. - Orlando S. Madrigal (ACM SIGPLAN Notices, 1973)

Computers in early education panel overview. - Orlando S. Madrigal (AFIPS National Computer Conference, 1978)

Training aspects of microcomputer usage in the information center environment. - George N. Arnovick; Orlando S. Madrigal (ACM Conference on Computer Science, 1985)

UPSILON PI EPSILON: Upsilon Pi Epsilon's half century. - Jeffrey L. Popyack; Orlando S. Madrigal (Inroads, 2017)