Bertcher, H. J. (1994). Group participation: Techniques for leaders and members (2nd ed.). Published in cooperation with the University of Michigan School of Social Work [by] Sage.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিBertcher, Harvey J. Group Participation: Techniques for Leaders and Members. 2nd ed. Thousand Oaks, Calif: Published in cooperation with the University of Michigan School of Social Work [by] Sage, 1994.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিBertcher, Harvey J. Group Participation: Techniques for Leaders and Members. 2nd ed. Published in cooperation with the University of Michigan School of Social Work [by] Sage, 1994.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.