Lailatizzahro, Nisa'u, Kristiyana, Naning and Santoso, Adi (2023) ISLAMIC WORK ETHICS, TOXIC LEADERSHIP, AND NEGATIVE WORKPLACE GOSSIPING: A CONCEPTUAL FRAMEWORK FOR EMPLOYEE PERFORMANCE IN THE ISLAMIC HOSPITALITY IN INDONESIA. Skripsi (S1) thesis, Universitas Muhammadiyah Ponorogo.