Indrayani I. Comparative Analysis of Profitability Before and After The Covid 19 Pandemic at PT. Kimia FarmaTbk. probis [Internet]. 2023 Apr. 30 [cited 2024 Sep. 28];14(2):229-32. Available from: http://ejournal.joninstitute.org/index.php/ProBisnis/article/view/106