Fernando Raja Partogi Sibagariang, and Agus Purwoko. “The Carrying Capacity of Infrastructure and Spatial Planning to the Recovery of Pandan Beach Natural Tourism Due to the Covid-19 Pandemic in North Sumatra (Central Tapanuli Regency Case Study) ”. Konfrontasi: Jurnal Kultural, Ekonomi Dan Perubahan Sosial, Vol. 8, no. 4, Dec. 2021, pp. 321-9, doi:10.33258/konfrontasi2.v8i4.169.