Penerapan syarat perjanjian kerja waktu tertentu dikaitkan dengan sebab pemutusan hubungan kerja: studi kasus putusan PHI Surabaya No.69/G/PHI/PN.Sby = The implimentation of provision employment contract regarding temporary work aggreement associated with the cause of a termination of employment: study case verdict No. 69/G/PHI/PN/Sby