text: 90. Various studies have also been carried out for the benefit of the Economic Community of the Great Lakes countries (CEPGL) and UDEAC countries. (c) Regional co-operation 91. The Ad Hoc Committee of Ten established by resolution 477 (XVIII) of the ninth meeting of the ECA Conference of Ministers met several times at ECA headquarters in order to implement the provisions of resolution 519 (XIX) of the tenth session of the ECA Conference of Ministers on the evaluation, harmonization, rationalization and possible merger of ECA- and OAU-sponsored institutions. The Committee visited five of the remaining institutions, namely: the Industrial Property Organization for English-speaking Africa (ESARIPO), the Regional Centre for Training in Aerial Surveys (RECTAS), the African Regional Centre for Engineering Design and Manufacturing (ARCEDEM), the Port Management Association of West and Central Africa (PMAWCA) and the Regional Institute for Population Studies (RIPS). 1 - 31 - (d) Interregional co-operation 92. By way of follow-up to the joint meeting between ECA and the United Nations Economic Commission for Latin America (ECLA) held in June 1982, a book entitled "Africa and Latin America: Perspectives for interregional co-operation" dealing with co-operation between the member States of the two Commissions in the fields of science and technology, manpower develop­ ment and utilization and trade promotion was published. The proposals contained therein will be submitted to the legislative organs of ECA and ECLA (now ECLAC) for consideration and approval. 93. A contribution to the report of the high-level committee meeting to review progress made in the implementation of the Buenos Aires Plan of Action has been prepared by ECA. (e) Afro-Arab co-operation 94. An Afro-Arab co-operation agreement has been signed between ECA and the League of Arab States. The secretariat made a substantive contribution to deliberations at the annual meeting of the Standing Committee on Afro- Arab Co-operation. 
analysis: The text appears to focus on international cooperation and development in Africa, with a specific emphasis on regional and interregional cooperation, as well as agreements and initiatives aimed at promoting economic development and cooperation between African countries and other regions. The text also mentions the evaluation and harmonization of institutions, which suggests a focus on organizational development and efficiency.