1. C-4 plant sugars in honey. Internal standard stable carbon isotope ratio. AOAC method 998.12;AOAC,1999
2. Comparison of physicochemical parameters in royal jelly from Romania and Bulgaria;Balkanska;Anim. Sci. Biotechnol.,2013
3. A study on stable isotope ratio of circulated honey in Korea;Cho;Korean J. Food Sci. Technol.,2012
4. Health promoting properties of bee royal jelly: food of the queens;Collazo;Nutrients,2021
5. Royal jelly: an ancient remedy with remarkable antibacterial properties;Fratini;Microbiol. Res.,2016