Rodin, Rhoni, and Eka Apriyani. “ANALYSIS OF OBSOLESCENCE AND PRODUCTIVITY OF AUTHORS USING LOTKA LAW ON THE JOURNAL OF ENTREPRENEURSHIP IN 2015 – 2019”. Publication Library and Information Science, vol. 5, no. 1, July 2021, pp. 1-17, doi:10.24269/pls.v5i1.3783.