Purnama Asri, C., & Pernata Sari, N. (2020). PROBLEM SOLVING DALAM BISNIS E-COMMERCE Studi di Kelurahan Gadingharjo, Sanden, Bantul, Yogyakarta. Jurnal Ilmiah Padma Sri Kreshna, 2(2). https://doi.org/10.37631/psk.v2i2.201