2021. Furniture Sales Application with Android-Based Qr Code Technology (Case Study "99" Furniture Store): Aplikasi Penjualan Mebel Dengan Teknologi Qr Code Berbasis Android (Studi Kasus Toko “99” Mebel). Procedia of Engineering and Life Science. 1, 2 (June 2021). DOI:https://doi.org/10.21070/pels.v1i2.922.