"MadhvaSiddhantaSara (PadarthaSangraha)" by Shree PadmaNabhaSuri - "A Primer of Dvaita Vedanta" - edited by Dr. D.N. Shanbhag [Dvaita Vedanta Studies 1994]

UPDATE from 09-June-2019: enhanced scan had been added (optimized size + OCR-txt-layer in English)

DOWNLOAD (Sanskrit-English, MB, OCR-layer):
#GOOGLEDRIVE #YADISK #MEGA #BOX #GETT 
#JOTTA #KOOFR #SYNC #DROPBOX #PCLOUD #COZY

English annotation by Vishnudut1926: Incredible Grantha by OM VishnuPad Shree PadmaNabhaSuri-Acharya (Shree VedaGarbha PadmaNabhAcharya). 

In the foreword Dr. D.N. Shanbhag cites B.N.K. Sharma who justifiably notes that "Shree Padartha-Sangraha" by Shree PadmaNabhaSuri (Shree Madhwa-Sampradaya) is akin to "Shree YatindraMataDipika" by ShrinivasaDasa (Shree Ramanuja-Sampradaya):

This edition includes both Sanskrit and English texts, I recommend to read both in Sanskrit and English, because Sanskrit variant conveys the primary notions of Shree Madhwa-Siddhanta in a much better way.

T H I S   S C A N   B E L O N G S   T O   T H E   F A M I L Y   O F   M Y   C O M P A C T  

 V A I S H N A V A   E - L I B R A R I E S ,   T H E Y   C A N   B E   F O U N D   O N :  

Wordpress (a catalogue with pictures and cloud links to PDF-scans) - #Wordpress

Nimbus (this is just a TXT-version without pictures) - #Nimbus
Airborn (the mirror of Wordpress) - #Airborn
GoogleDocs (the mirror of Wordpress) - #GoogleDocs

"DVAITA VEDANTA" #K.R. Paramahamsa# [Tirumala Tirupati Devasthanams] ~2012~

UPDATE from 03-May-2019: enhanced scan had been added [optimized size 4MB + OCR-txt-layer in English]

DOWNLOAD (optimized scan, 4MB, OCR-layer):
#GOOGLEDRIVE #YADISK #MEGA #BOX #GETT
#JOTTA #KOOFR #SYNC #DROPBOX #PCLOUD 
========================================
DOWNLOAD (old scan, 47MB, without OCR): #JOTTA #SYNC #GE.TT #ASUS

English annotation by Vishnudut1926: Apart from Dvaita-Vedanta theme this research also tells about principal Acharyas of Shree Madhwa-Sampradaya. 

Interesting fact - on the page 71 K.R. Paramahamsa writes that OM VishnuPad Shree MadhwAcharya had cited 2 Verses from "Shree Mukunda-Mala-Stotram" by Shree Kulashekhara-Alwar in "Shree Krishna-Amrita-Maharnava" (showing His respect to Shree Ramanuja-Sampradaya, of course!):

T H I S   S C A N   B E L O N G S   T O   T H E   F A M I L Y   O F   M Y   C O M P A C T  

 V A I S H N A V A   E - L I B R A R I E S ,   T H E Y   C A N   B E   F O U N D   O N :  

Wordpress (a catalogue with pictures and cloud links to PDF-scans) - #Wordpress

Nimbus (this is just a TXT-version without pictures) - #Nimbus
Airborn (the mirror of Wordpress) - #Airborn
GoogleDocs (the mirror of Wordpress) - #GoogleDocs