Ragil Listyowati; Syamsul Hadi; Epsilandri Septyarini. THE EFFECT OF KNOWLEDGE SHARING AND LEADER-MEMBER EXCHANGE ON EMPLOYEE PERFORMANCE WITH ORGANIZATIONAL CITIZENSHIP BEHAVIOR AS A MEDIATION VARIABLE (STUDY ON GUDEG YU DJUM PUSAT YOGYAKARTA). MORFAI 2025, 5, 1120-1135.