Principles of Microeconomics(Mankiw),R.C. Hibbeller - Engineering mechanics statics 11th,통계학입문(정익사,김종우),Financial Accouting IFRS Edition (Weygandt Kimmel Kieso, Wiley),linear algebra(gilbert strang) 3rd
http://a0708-soho112.blogspot.kr/2014/01/9introduction-to-chemical-processes.html
http://blog.naver.com/ch1215kr/120206731078