Problem Solving and Structured Programming in Basic by Elliot B. Koffman, Frank L. Friedman. This text contain Problem Solving With Computers. Fundamental Control Structures. Expressions, Strings And Built In Functions.  The While Loop. Top Down Programming And Subroutines.  Arrays And Subscripts. Nested And Multiple Alternative Structures.  Larger Programs: User Defined Functions And Subroutines And Subprograms. Character String Manipulation. Two Dimentional Arrays And Matrices. Formatted Out-Put And Files.