Hi, I’ve been unemployed for five months and am thinking about taking the LEED GA exam to make myself more marketable. Does anyone have any recommendations for study guides? I’m hesitant to spend $155 for the Green Assoc. Study Guide w/ Green Building & LEED Core Concepts Guide from the USGBC. I’m thinking about getting the “LEED GA Exam Guide: A must-have for the LEED green associate exam: Comprehensive study materials, sample questions, mock exam, green building LEED … and sustainability” for $50. Thanks!