Wresdiyati, T. et al. 2023. The Repeated Dose 28-Day Oral Toxicity Study of Combined Extract of Cajanus cajan Leaf and Zingiber officinale Rhizome in Male and Female Sprague-Dawley Rats: http://www.doi.org/10.26538/tjnpr/v7i8.21. Tropical Journal of Natural Product Research (TJNPR). 7, 8 (Aug. 2023), 3706–3716.