https://sampiran.com/wp-content/uploads/2022/02/sampiran-new-logo-600x157.png00Sampiranhttps://sampiran.com/wp-content/uploads/2022/02/sampiran-new-logo-600x157.pngSampiran2021-03-13 18:06:182021-03-13 18:06:18Project Managers’ Competencies Model for Construction Industry in Poland