Wanchai De-eknamkul. 1992. Production of naphthoquinones by tissue cultures of garden balsam (impatiens balsamina). Bangkok:Chulalongkorn University;
Wanchai De-eknamkul. (1992) Production of naphthoquinones by tissue cultures of garden balsam (impatiens balsamina) (รายงานผลงานวิจัย). Chulalongkorn University:Bangkok.
Wanchai De-eknamkul. Production of naphthoquinones by tissue cultures of garden balsam (impatiens balsamina). Bangkok:Chulalongkorn University, 1992.
Wanchai De-eknamkul. (1992) Production of naphthoquinones by tissue cultures of garden balsam (impatiens balsamina) (รายงานผลงานวิจัย). Chulalongkorn University:Bangkok.