Purwoko GD, Permada DNR. ANALISA KINERJA KEUANGAN PT BLUE BIRD PERIODE TAHUN 2015 - 2019. Jurnal Proaksi [Internet]. 2020 Sep. 5 [cited 2026 Oct. 19];7(2):82-9. Available from: https://www.e-journal.umc.ac.id/index.php/JPK/article/view/1214