Cara yang gak Lazim Membangun Jembatan

Kira-kira aman gak nih jembatannya?

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https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgk6W6NVCwzOD0HJoTdbhCjZtMM9FhAmERcgZV5VxGNRZ6k8lH2gOtDT0wgw0zTjY6gYseZPqDz6Rd4YNvCdfKlFMHCQkpBaT-gkMv_Qh8Rkv5ST7HFhqtAkOT9aPrS9U0SMFk5M8CctqB5/s1600/interesting_way_of_bridge_building_01.jpg

sumber: http://unic77.blogspot.com/2010/10/cara-unic-dan-aneh-membangun-jembatan.html