By kiera.obrien , 19 October, 2026 Body Rulianda Purnomo Wibowo is a lecturer at Universitas Sumatera Utara. Institution Universitas Sumatera Utara By kiera.obrien , 4 August, 2025 Professional insight from Universitas Sumatera Utara
Universitas Sumatera Utara By kiera.obrien , 4 August, 2025 Professional insight from Universitas Sumatera Utara
