Planirane na sot͡s︡ialnoto osiguri͡a︡vane
Subtitle: metodika
By: Petŭr Penkov.
Publisher: Nauchnoizsledovatelski in-t po profsŭi͡u︡zni problemi "G. Dimitrov" pri T͡S︡S na BPS
Published: 1982
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 44
Subjects: Social security -- Bulgaria -- Forecasting.
Notes: Summary in English and Russian.