Kristianto A. Negosiasi Harga e-Purchasing Katalog Dalam Pengadaan Barang/Jasa Pemerintah. JPBJ [Internet]. 2022 Apr. 30 [cited 2025 Apr. 18];1(1):53-60. Available from: https://journal.ifpi.or.id/index.php/jpbj/article/view/14