OpenSCAD for 3D Printing,Al Williams

Python for 3D Printing: Using Python to enhance the power of OpenSCAD for 3D modeling: 2 (Computer-aided 3D Design, Modeling and Printing - using Python and OpenSCAD)

Programming With Openscad: A Beginner's Guide to Coding 3D-Printable Objects

3D Printing for Artists, Designers and Makers

Design for 3D Printing: Scanning, Creating, Editing, Remixing, and Making in Three Dimensions