D & S Marketing

year of pub­li­ca­ti­onISBNauthor(s)title
2007978-1-934780-00-8Leon SchramMULTIPLE-CHOICE AND FREE-RESPONSE QUESTIONS IN PREPARATION FOR THE AP COMPUTER SCIENCE ("A" AND "AB") EXAMINATION
  ''978-1-934780-01-5Student Solution's Manual for the AP Computer Science (a & AB) Examination
2015978-1-934780-34-3Leon SchramMultiple-Choice & Free-Response Questions in Preparation for the AP Computer Science Examination