01/03/2023 I joined universitas Indonesia as assistant professor
27/02/2023 Resigned from TU Dublin and going back to Indonesia
01/09/2021 My own project to develop data analysis software for spectroscopy is available online.
24/07/2021 at 12:00 JST / 10:00 WIB, my first daughter was born in Tohoku University Hospital Sendai Japan. The baby's weight is 3450 gram and height 55 cm. Her name is Olivina Rufaida Siregar. I hope she will be healthy, happy, smart, and solehah.
28/03/2020. Thank you for the messages during the Covid-19 outbreak. I am in good condition and all of my workmates in CBBP are also fine. Undergraduate, Master and Ph.D. students are suggested to working/learning from home. I just come to the office twice a week to obtain new information and work from home for the rest of the time. Besides that, yesterday is the fourth time, I was not able to perform the Friday prayer since all of the mosques in Sweden were closed. Today, 3447 people are infected with coronavirus and 105 deaths. I hope everything will be fine and I hope the pandemics will end soon.