Writing Fundamentals of Aerospace Engineering has been an exhausting, very time consuming activity. To acknowledge author’s effort, a paypal donation platform has been activated. Also, printed copies can be acquired at low cost price (lower than self printing) via Amazon (available at Amazon.com, Amazon.uk, Amazon.es, Amazon.de, Amazon.fr, etc.).
Also available at:
CreateSpace, Amazon.es, Amazon.uk, Amazon.it, Amazon.de, Amazon.fr