Damrong Sommit. 1997. Structure analysis of diterpenoid compounds from stem bark of Croton oblongifolius Roxb. Graduate School, Chulalongkorn University;
Damrong Sommit. (1997) Structure analysis of diterpenoid compounds from stem bark of Croton oblongifolius Roxb. . Chulalongkorn University/Bangkok.
Damrong Sommit. Structure analysis of diterpenoid compounds from stem bark of Croton oblongifolius Roxb. . Bangkok:Chulalongkorn University, 1997.
Damrong Sommit. (1997) Structure analysis of diterpenoid compounds from stem bark of Croton oblongifolius Roxb. . Chulalongkorn University/Bangkok.