Rattan, S.I.S. and Sodagam, L. (2005). "Gerontomodulatory and youth-preserving effects of zeatin on human skin fibroblasts undergoing aging in vitro". Rejuvenation Research. 8 (1): 46–57. doi:10.1089/rej.2005.8.46. PMID15798374.{{cite journal}}: CS1 maint: multiple names: authors list (ลิงก์)
Rattan, S.I.S. and Sodagam, L. (2005). "Gerontomodulatory and youth-preserving effects of zeatin on human skin fibroblasts undergoing aging in vitro". Rejuvenation Research. 8 (1): 46–57. doi:10.1089/rej.2005.8.46. PMID15798374.{{cite journal}}: CS1 maint: multiple names: authors list (ลิงก์)