Kristen Taketa (18 de enero de 2022). «California to remove Mayan affirmation from ethnic studies after lawsuit argues it's a prayer». Los Angeles Times. Consultado el 27 de julio de 2023. «The model curriculum also included a longer chant based on In Lak’Ech and the Aztec concept of Nahui Ollin, also called the Four Movements. Nahui Ollin involves four concepts — self-reflection, knowledge, action and transformation — which are represented by the names of four Aztec gods. The chant also includes the name of a fifth Aztec god.»
