Code from and inspired by Prof. Gubi's course on Programming Language Concepts
at IME/USP (Universidade de São Paulo, Instituto de Matemática e Estatística).

The text book, also known as PLAI: 
  Shriram Krishnamurthi- Programming Languages: Application and Interpretation

Relevant links
----------------

Free PDF of PLAI:
  http://www.cs.brown.edu/~sk/Publications/Books/ProgLangs/

CS-173 Programming Languages (Brown University), course where PLAI was born:
  http://www.cs.brown.edu/courses/cs173/
  
Moodle with MAC-0316 course materials and discussions (requires login):
  http://paca.ime.usp.br/course/category.php?id=26

Official but outdated MAC-0316 course description at the USP course catalog:
  https://sistemas2.usp.br/jupiterweb/obterDisciplina?sgldis=mac0316