1. Standard Method for Alpha-cellulose in Wood;ASTM (American Society for Testing and Material),1977
2. Standard Test Method for Holocellulose in Wood;ASTM,1978
3. Standard Test Method for Alcohol-Benzene Solubility of Wood;ASTM,1984
4. Essentials of Pulping and Paper-making;Biermann,1993
5. Lignins of hardwoods growing on southern pine sites;Bleam;Wood Science,1975