Learn to Draw Pen and Ink Landscapes - Pen and Ink Drawings by Rahul Jain
Rendering in Pen and Ink: The Classic Book On Pen and Ink Techniques for Artists, Illustrators, Architects, and Designers: Arthur L. Guptill, Susan E. Meyer: 9780823045297: Amazon.com: Books
Pen & Ink Techniques (Dover Art Instruction): Frank J. Lohan: 9780486474564: Amazon.com: Books
Pen drawing | Techniques, Materials & History | Britannica
Pen and Ink Drawing Tutorials | How to draw a house - YouTube