Minaei S, Chenarbon HA, Motevali A, Hosseini AA. Energy consumption, thermal utilization efficiency and hypericin content in drying leaves of St John’s Wort (Hypericum Perforatum). J. energy South. Afr. [Internet]. 2014 Sep. 23 [cited 2024 May 3];25(3):27-35. Available from: https://energyjournal.africa/article/view/2655