254752, title = { در خصوص سالمندان }, journal ={ جمعیت }, number = { 18,19,20,21,22,23,24 }, year = { 1375 }, author = { ضیایی,‌لطف‌الله and }, pages = { 12 -- 16 }, url = { https://www.noormags.ir/view/fa/articlepage/254752 } }