Penyelesaian perselisihan pemutusan hubungan kerja karena pengunduran diri pekerja: studi kasus putusan pengadilan hubungan industrial pada Pengadilan Negeri Bandung nomor 45/Pdt.sus-PHI/2015/PN.Bdg = Dispute settlement over the termination of employment caused by resignation of worker: case study of industrial relations court on District Court of Bandung decision number 45/Pdt.sus-PHI/2015/PN.Bdg