PERR 10.1 (April 2021)

Vol. 10, No. 1 (April 2021)

Vol. 9, No. 3 (December 2020)

Vol. 9, No. 2 (August 2020)

Vol. 9, No. 1 (April 2020)

Vol. 8, No. 3 (December 2019)

Vol. 8, No. 2 (August 2019)

Vol. 8, Special Issue (June 2019)

Vol. 8, No. 1 (April 2019)

Vol. 7, No. 3 (December 2018)

Vol. 7, No. 2 (September 2018)