共 4 条
[1]
FERSTER CB, SCHEDULES REINFORCEM
[2]
KELLEHER ROGER T., 1962, JOUR EXPTL ANALYSIS BEHAVIOR, V5, P543, DOI 10.1901/jeab.1962.5-s543
[3]
KELLER FS, PRINCIPLES PSYCHOLOG
[4]
SKINNER BF, BEHAVIOR ORGANISMS E