Abdul Saman, - and Hillman Wirawan, - (2021) Examining the impact of psychological capital on academic achievement and work performance: The roles of procrastination and conscientiousness. https://www.tandfonline.com/doi/full/10.1080/23311908.2021.1938853.
Farida Aryani, - and Hillman Wirawan, - and Abdul Saman and Sulaiman Samad, - and Muhammad Jufri, - (2021) From high school to workplace: investigating the effects of soft skills on career engagement through the role of psychological capital in different age groups. © Emerald Publishing Limited 0040-0912.
Risma Niswaty, - and Hillman Wirawan, - and Haedar Akib, - and M. Said Saggaf, - (2021) Investigating the effect of authentic leadership and employees' psychological capital on work engagement: evidence from Indonesia. Heliyon.
Dahyar Daraba, - and Hillman Wirawan, - and Rudi Salam, - and Muhammad Faisal, - (2021) Working from home during the corona pandemic: Investigating the role of authentic leadership, psychological capital, and gender on employee performance. https://www.tandfonline.com/doi/full/10.1080/23311975.2021.1885573.
Syahruddin Hattab, - and Hillman Wirawan, - and Rudi Salam, - and Daswati Daswati, - and Risma Niswaty, - The effect of toxic leadership on turnover intention and counterproductive work behaviour in Indonesia public organisations. International Journal of Public Sector Management © Emerald Publishing Limited.