Sung, E. W. (2007). Using the concrete-representation-abstract instruction to teach algebra to students with learning disabilities. CSUSB ScholarWorks.
Chicago Style (17th ed.) CitationSung, Edward William. Using the Concrete-representation-abstract Instruction to Teach Algebra to Students with Learning Disabilities. CSUSB ScholarWorks, 2007.
MLA (8th ed.) CitationSung, Edward William. Using the Concrete-representation-abstract Instruction to Teach Algebra to Students with Learning Disabilities. CSUSB ScholarWorks, 2007.
Warning: These citations may not always be 100% accurate.