↑ Greenwald, Irwin D.; Maureen Kane (tháng 4 năm 1959). “The Share 709 System: Programming and Modification”. Journal of the ACM (New York, NY, USA: ACM) 6 (2): 128–133. doi:10.1145/320964.320967. One of the important uses of programmer macros is to save time and clerical-type errors in writing sequence of instructions which are often repeated in the course of a program.
