555 timer monostable operation not so stable - Electrical Engineering Stack Exchange
Amazon.com: The Ultimate Beginner's Guide to the 555 Timer: Build the Atari Punk Console and Other Breadboard Electronics Projects eBook : Rutherford, Jesse: Kindle Store
Amazon.com: Design of Function Circuits with 555 Timer Integrated Circuit eBook : Selvam, K.C.: Books
Monostable Multivibrator using IC 555. : Amazon.in: Industrial & Scientific