Endariyantono E, Maryam EW. Group Cohesiveness in Sidoarjo Manganese Community Volunteers: Kohesivitas Kelompok pada Relawan Komunitas Mangan Sidoarjo. Ind. Jour. Cul. Comm. Dev [Internet]. 2022 Sep. 30 [cited 2025 Aug. 30];13:10.21070/ijccd2022837. Available from: https://ijccd.umsida.ac.id/index.php/ijccd/article/view/837