Ida Royani (2022) “PENGARUH HARD SKIL DAN SOFT SKILL TERHADAP KINERJA PEGAWAI DINAS PENANAMAN MODAL DAN PELAYANAN TERPADU SATU PINTU KABUPATEN ROKAN HULU DI ERA REVOLUSI INDUSTRI 4.0: EFFECT OF HARD SKIL AND SOFT SKILL ON THE PERFORMANCE OF EMPLOYEES IN THE INVESTMENT SERVICE AND INTEGRATED ONE-DOOR SERVICES OF ROKAN HULU DISTRICT IN THE ERA OF THE INDUSTRIAL REVOLUTION 4.0”, Hirarki : Jurnal Ilmiah Manajemen dan Bisnis, 4(1), pp. 643–658. doi: 10.30606/hirarki.v4i1.1515.