Kefas HM, Avsar C, Abubakar AM, Saleh SY, N I. Temperature and pH Influence on Citric Acid Production from Orange Peels Using Aspergillus niger. Opt. [Internet]. 2024 Oct. 3 [cited 2025 Aug. 24];1(1):164-80. Available from: https://www.opt.reapress.com/journal/article/view/54