Journal of Applied Behavior Analysis (JABA) is searchable through the SU library catalog (WCD), GoogleScholar, PubMed, and Browzine. You might have to go to all 4 sources to find the JABA articles you need.
Below is a list of even more journals you'll find in the SU collections.
Autism Research Browzine is the best place to start.
Autism Research and Treatment
Behavior Analysis Digest
Behavior Analysis in Practice
Behavioral and Brain Functions
Education & Training in Autism & Developmental Disabilities
Education and Treatment of Children
International Journal of Disability, Development & Education
Journal of Positive Behavior Interventions
Journal of Speech and Language Pathology – Applied Behavior Analysis
Journal of the Experimental Analysis of Behavior
Research in Autism Spectrum Disorders