threshold pledge system

fundraising method

en-GB/ˈθɹɛʃəʊld ˈplɛd͡ʒ ˈsɪstəm/
en-US/ˈθɹɛʃoʊld ˈplɛd͡ʒ ˈsɪstəm/

ক্যাটাগরি:

method