The economics of environmental management/ Julian Lowe, David Lewis

Roads and traffic in urban areas / Institution of highways and transportation

Studi mengenai perilaku kerja kontraproduktif pengaruh cara menegur terhadap kesantaian kerja dan kesalahan kerja = Study of counterproductive work behavior impact of constructive and destructive feedback on idle time and work errors

Pengaruh Workplace Happiness dan Proactive Personality terhadap Employee Service Innovative Behavior yang Dimediasi oleh Work Engagement di BPJS Kesehatan = The Impact of Workplace Happiness and Proactive Personality on Employee Service Innovative Behavior Mediated by Work Engagement in BPJS Kesehatan

Pengaruh Lingkungan Kerja dan Work Passion terhadap Kinerja dan Turnover Intention (Studi pada Karyawan PT. Shopee International Indonesia 2019) = The Impact of Work Environment and Work Passion on Job Performance and Turnover Intention (Employee of PT. Shopee International Indonesia 2019)