Looking for Digital Versions of Digital Computer Programming by McCracken and Quality Software Management by Weinberg

I'm hopelessly trying to find digital copies (I don't care if it's paid or not) of these two books:

• Digital Computer Programming, by David D. McCracken
  • Could only find an old physical copy from a local dealer.
• Quality Software Management V1: Systems Thinking, by Gerald Weinberg (if you have the complete series, all the better)
  • Only found physical copies in Portuguese (I live in Brazil)

I've tried:

• [Amazon](amazon.com)
• Google Books
• googling for the specific pdfs
• libgen
• libribook (formerly smtebooks)