column
2020, 38(5): 585-598.
DOI: 10.11913/PSJ.2095-0837.2020.50585
2020, 38(5): 604-608.
DOI: 10.11913/PSJ.2095-0837.2020.50604
2020, 38(5): 627-635.
DOI: 10.11913/PSJ.2095-0837.2020.50627
2020, 38(5): 663-670.
DOI: 10.11913/PSJ.2095-0837.2020.50663
2020, 38(5): 707-715.
DOI: 10.11913/PSJ.2095-0837.2020.50707
2020, 38(5): 716-722.
DOI: 10.11913/PSJ.2095-0837.2020.50716