Puspitasari SRD, Fatah A. Pengaruh Volume Penjualan dan Biaya Operasional terhadap Laba Bersih di Pangkalan LPG 3 Kg Siti Aminah Sidoarjo Periode 2017-2019. benchmark [Internet]. 2021 Oct. 26 [cited 2025 Dec. 27];2(1):108-13. Available from: http://journal.febubhara-sby.org/benchmark/article/view/226