P. A. Faradiela, A. . Wibowo, and Y. R. . Husniyawati, “FORECASTING THE NUMBER OF VERTICAL REFERRALS FOR BPJS PARTICIPANTS AT HEALTH SERVICE CENTER IN UNIVERSITAS AIRLANGGA USING ARIMA MODEL”, JBK, vol. 11, no. 1, pp. 62–71, Jul. 2022.