I. Roja

Insomnia management for ageing employees with job stress

Z. Roja, H. Kalkis, I. Roja, 2014 .

Work Related Musculoskeletal Disorders (WRMSD) in Construction Workers and Main Causes

Z. Roja, H. Kalkis, J. Zaļkalns, 2017, AHFE.

Psychosocial risks analysis for employees in public administration

Z. Roja, H. Kalkis, D. Pastare, 2020 .

Work strain predictors in construction work

B. Sloka, Z. Roja, H. Kalkis, 2017 .

The effects of a medical hypnotherapy on clothing industry employees suffering from chronic pain

Z. Roja, V. Kaļķis, H. Kalkis, 2013, Journal of Occupational Medicine and Toxicology.