Making meeting work : a guide for leaders and group members

Peran Support Group dalam mendorong motivasi belajar remaja : action research pada pelajar SMA X, Manggarai, Jakarta Selatan = The role of Support Group encouraging learning motivation in youth : action research on students of SMA X, Manggarai, South Jakarta

Social group work : a helping process

Social group work principles and practices

Hubungan antara kualitas paduan suara dan group cohesiveness pada Paduan Suara Gereja Katolik