The Proceeding of The International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART) 21-22 October 2021 Contents: Study of Food Security in South Minahasa Regency Using System Dynamics Hal 1 – 7 Robert Molenaar and Erny Nurali Optimization of Waste Cooking Oil and Sweet Starter1 Hal 8-13 Astri Arnamalia and Siwi Qoirinisa Utilization of Graph Theory Modelling in Searching Potential Indonesian Medicine Plants as Antihypertension Hal 14-20 Deden Ardiansyah, Lusi Agus Setiani, and Arif Rahman Hakim The Application of Decision Support System for Job Vacancy Recommendation Using Analytical Hierarchy Process at Widya Kartika’s Student Career Center Hal 21-26 Andrew Irawan, Robby Kurniawan Budhi and Yonatan Widianto GPS Using for Teacher’s Attendance in Student’s Fieldwork Practices at SMKN 7 Surabaya Hal 27-32 Yonatan Widianto , Denny Suhanda and Shendy Susilo Development of Student Information System Portal at Widya Kartika University Surabaya Hal 33-39 Andrew Irawan and Robby Kurniawan Budhi Soybean Variety Identification System Using Fuzzy Tsukamoto and Case Based Reasoning Hal 40-45 Alif Tiady R, Eneng Tita Tosida, Adriana Aryani and Utep Spatio Temporal Characteristics of LST to NDBI and NDVI in Lake Tondano Based on Landsat Imagery Hal 46-55 Oknardo Tulung, Winsy Weku and Charles Mongi Preliminary Study of Heat Distribution On Sweet Potatoes Heated by Microwave Hal 56-60 Gilbert V Abidjulu, Dolfie P Pandara, Maria D Bobanto, Heski Kolibu, Ferdy Ferdy, Verna A Suoth, Gerald H Tamuntuan and Fingken A Sagai
