KONGRES PANCASILA IX DAN TANGGA KERAMAT UGM
http://setkab.go.id/sambutan-presiden-joko-widodo-pada-kongres-pancasila-ix-di-halaman-balairung-universitas-gadjah-mada-ugm-sleman-di-y...
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https://sahampemenang.blogspot.com/2017/07/kongres-pancasila-ix-dan-tangga-keramat.html