1. مجموعه‌ قوانین‌ و مقررات‌ شهرداری تهران‌ حوزه‌ تخصصی‌ خدما‌ت‌ شهری با‌ آخرین‌ اضا‌فا‌ت‌ و اصلاحا‌ت‌ ۱۳۹۳,ایران‌. قوانین‌ و احکا‌م‌

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