Ruliati, Luh, Ribka Limbu, Imelda Manurung, & Agus Setyobudi. " Function of Post UKK in an Effort to Improve Occupational Health of Informal Sector Workers." Jurnal Ergonomi Indonesia (The Indonesian Journal of Ergonomic) [Online], 7.1 (2021): 50 - 56. Web. 26 Apr. 2024