1. Chemical Research Institute. Chemical Annual. Seoul, Korea, various years (in Korean).
2. IPCC/IEA/OECD/UNEP, 1997. Revised 1996 IPCC guidelines for national Greenhouse gas inventories, vol. 1–3. UK: IPCC Working Group I Technical Support Unit, Hadley Centre, Bracknell.
3. Korea National Oil Corporation (KNOC). Korea Oil Statistics. Seoul, Korea, various years (in Korean)
4. Korea Petrochemical Industry Association (KPIA). Petrochemical Annual. Seoul, Korea, various years (in Korean).
5. Carbon dioxide emissions from fossil fuels: a procedure for estimation and results for 1950–1982;Marland;Tellus,1984