Artikel review: ring bersih lemah

JURNAL MATEMATIKA UNDIP 1 (2), 384-393

Authors: B Santoso, H Tjahjana, T Udjiani

Mcshane integrable of banach valued function on every subinterval

JURNAL MATEMATIKA UNDIP 1 (2), 523-530

Authors: M Sairun, YD Sumanto, H Tjahjana

Pelabelan total super trimagic sisi pada beberapa graf

JOURNAL OF FUNDAMENTAL MATHEMATICS AND APPLICATIONS (JFMA) 1 (1), 52-59

Authors: RHS Utomo, H Tjahjana, B Irawanto, L Ratnasari

Artikel review: metode dekomposisi–pembatas objektif penyebut–simpleks pada permasalahan program fraksional linierfuzzy

JURNAL MATEMATIKA UNDIP 1 (1), 323-333, 2018

Authors: W Jumiati, S Solikhin, RH Tjahjana

Pemilihan portofolio saham indeks lq45 dengan metode nadir compromise programming

JURNAL MATEMATIKA UNDIP 1 (1), 185-194

Authors: DA Pinanggih, S Sunarsih, H Tjahjana

Robust model predictive control for inventory system with uncertain demand using linear matrix inequalities

JOURNAL OF PHYSICS: CONFERENCE SERIES 1025 (1), 012089, 2018

Authors: Widowati, RH Tjahjana, Sutrisno, A Saputra

Global stability for linear system and controllability for nonlinear system in the dynamics model of diabetics population

JOURNAL OF PHYSICS: CONFERENCE SERIES 1025 (1), 012086, 2018

Authors: AH Permatasari, RH Tjahjana, T Udjiani

Existence and characterization of optimal control in mathematics model of diabetics population

JOURNAL OF PHYSICS: CONFERENCE SERIES 983 (1), 012069, 2018

Authors: AH Permatasari, RH Tjahjana, T Udjiani

Optimal strategy for supplier selection problem integrated with optimal control problem of single product inventory system with piecewise holding cost

JOURNAL OF PHYSICS: CONFERENCE SERIES 893 (1), 012067, 2017

Authors: Sutrisno, Widpowati, RH Tjahjana

Deterministic dynamic programming approach to solve an integrated dynamic supplier selection and inventory control

ADVANCED SCIENCE LETTERS 23 (7), 6559-6561, 2017

Authors: Sutrisno, Widowati, RH Tjahjana, Solikhin