Muhlizar, Muhlizar, Syafil Warman, & Joharsah Joharsah. " The Role of Trade Unions/Labourers in Legal Protection Efforts Against Workers/Labourers in the Atmosphere of the Covid-19 Pandemic In view of Law Number 13 of 2003 concerning Manpower." Proceeding International Conference of Science Technology and Social Humanities [Online], 1 (2022): 321 - 328. Web. 26 Apr. 2024