BRGY. LOS ANGELES, Butuan City – Around thirty online learners who viewed the third episode of the webinar series on concoctions last June 5, 2020 learned about Lactic Acid Bacterial Serum (LABS) and carrots, celery, cucumber or 3Cs. The said topics were discussed by Engr. Joel Laure, Agriculturist II of ATI-RTC 13.