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BSIABritish Security Industry Association (UK)
BSIABeijing Software Industry Association (China)
BSIABinding Site Improvement Agreement
BSIABritish Security Industry Authority
BSIABritish Starch Industry Association
BSIABeijing Semiconductor Industry Association (China)
BSIABest Scientific Information Available
BSIABachelor of Science in Information Assurance
BSIABase Station Interface Adaptation
BSIABereavement Services Industries Association (UK)
BSIABible Society in Australia
BSIABangladesh Sick Industries Association
BSIABulk Stable Isotope Analysis
BSIABachelor of Science in Industrial Arts
BSIABioScience Intelligence Advisors, LLC
BSIABritish Standards Institute Association
BSIABelarusian Scientific-Industrial Association
BSIABotanical Special Interest Areas
BSIABarrington Square Improvement Association (Hoffman Estates, IL)
BSIABridge Set Infantry Assault
BSIABulk Sample Isotope Analysis
BSIABehavior Science in the Information Age (course)
BSIABuilding Social Inclusion in Australia
BSIABuilding Surveyors Institute of Australia
BSIABlack Sea Information Alliance
BSIABasic Skills Independent Assessments (UK)
BSIABaghdad-Saddam International Airport
BSIABrockhall Ship Insurance Agency (UK)