The 1 I liked most, And that i ended up studying fully, is Rudin's 1: I'm a PhD university student in engineering and I think the level of the ebook was excellent to me. Whilst the algebraic formula for $b, c$ is easy to calculate, the algebraic components for $a$ https://solpapisaforotarot28269.blogprodesign.com/57593293/the-basic-principles-of-por-qué-es-bueno-leer-el-tarot