Gunawan Wibisono, Sumiati, Risna Wijayanti, Raditha Hapsari
We are sincerely grateful for the regional discount already offered. However, the current exchange-rate pressure on the Indonesian rupiah against the US dollar makes the remaining article processing charge substantial in local-currency terms. If the manuscript is accepted, we would be very grateful if the journal or publisher could consider an additional reduction, partial waiver, or other available support. We fully understand that such assistance may be subject to publisher policy and available resources, and we greatly appreciate your consideration and understanding.