Indonesian is the most spoken Language in South East Asia by 250 millon speakers. Also Indonesian Language is understandable in Malaysia, Brunei, Singapore, South Thailand, South Philippines and East Timor as it has been originated from Malay Language. Indonesian Language adapts flexibly by absorbing vast number of vocabulary from foreign Languages especially English, Dutch, Arabic and Sanksrit.

Chemistry, Biochemistry and Biology lesson are opened for broad range of grade from Senior High School to Master level. My class involves review and exercise for the lesson which includes the presquites as well as open discussion. For senior high school level it is opened from IGCSE , GCSE, A Level , Cambridge test, various University Enterance Exam prepartation, science project and science olympiad. Meanwhile for university level it is opened for bachelor and master level which includes specific lessons. For chemisty at university level it ranges from fundamental of chemistry for various major , fundamental organic chemistry , fundamental analytical chemistry and polymer chemistry as well as consultation in scientific paper and thesis. In additon biochemistry and biology opens for various lesson in bachelor and master level for example : fundamental of biology and various majors, microbiology for various majors, molecular biology (medicine, biology, pharmaceutical, biochemistry, biotechnology), fundamental of biochemistry, metabolism biochemistry, laboratory methods in biochemistry as well as consultation for scientific project and thesis.