E-books zu QBasic und QuickBasic im PDF-Format contains PDF copies of the GW-BASIC Manual and PC Magazine's BASIC Techniques and Utilities Book.
GW-BASIC LANGUAGE
The Encyclopedia of Computer Languages - BASIC(ID:176/bas009)
TinyBasic
http://www.atariarchives.org/
http://www.atariarchives.org/basicgames/
http://www.atariarchives.org/morebasicgames/
http://www.atariarchives.org/bigcomputergames/
Vintage BASIC is open source software, provided under the BSD license.
Vintage Basic - Games
Overview of BASICODE-3
Seopedia - BASICODE
GitHub - jacgoudsmit/Basicode old archive with source files for Basicode support for DOS on the IBM PC compatibles. Public Domain.
Arithmetic Operators Order of precedence: ^ Exponentiation - Negation * Multiplication / Floating-point Division + Addition - Substraction